Copeia 2012, No. 1, 37–48 A New Blind Snake Species of the Genus Tricheilostoma from Espinhaço Range, Brazil and Taxonomic Status of Rena dimidiata (Jan, 1861) (Serpentes: Epictinae: Leptotyphlopidae) Roberta R. Pinto1 and Ronaldo Fernandes1 Designation and description of a neotype and geographic variation of the blind snake Rena dimidiata are presented here on the basis of a noted sample, providing a question on its generic identity, and proposing a new taxonomic combination. Rena dimidiata is recognized here as a species of Tricheilostoma, based on putative characters published in a recent paper, additional external traits and hemipenial characters. Morphometric and meristic characters for all species of Tricheilostoma are described herein. Additionally, a new species of Tricheilostoma is described from Espinhaço Range, Brazil. T HE purpose of redescription in leptotyphlopid species is mostly explained by the rare exploration of morphologic characters in different genera and quite brief historical descriptions. Some recent work illustrates the need for taxonomic revisions at the generic level and presents novel insights into a number of putative characters (Passos et al., 2006; Broadley and Wallach, 2007; Franco and Pinto, 2009; Pinto and Curcio, 2011). Adalsteinsson et al. (2009) proposed a molecular phylogeny of the Leptotyphlopidae and resurrected some genera to recognize the clades within a monophyletic framework. Most of the Neotropical clades (tribe Epictini, subfamily Epictinae) correlate with species groups proposed by OrejasMiranda (1967) or Peters and Orejas-Miranda (1970). The former Leptotyphlops dulcis species group (sensu Peters and Orejas-Miranda, 1970) was split in two resurrected genera: Rena Baird and Girard, 1853 and Tricheilostoma Jan, 1860. According to Adalsteinsson et al. (2009), species of Tricheilostoma are distinguished from species of Rena by having a brown or pale brown (not white) venter, three supralabials (also present in Rena bressoni, R. dissecta, and R. myopica), and a lower average number of middorsal scales. Adalsteinsson et al. (2009) did not analyze all species of both genera in their phylogenetic hypothesis, so several diagnosed characters are homoplastic when all species of both genera are taken into account. Passos et al. (2006) and Pinto and Curcio (2011) proposed some putative characters based on all species of Tricheilostoma (narrow basal and robust terminal portions of hemipenial body, middorsal cephalic scales of moderate size, and enlarged terminal spine). None of those characters were analyzed in the Adalsteinsson et al. (2009) phylogeny. So, at present we recognize only the characters proposed by Passos et al. (2006) and Pinto and Curcio (2011) to diagnose the genus Tricheilostoma. Stenostoma dimidiata (5Rena dimidiata) was proposed by Jan (1861) in a brief description based on a single unnumbered specimen from ‘‘Brésil’’ (5Brazil). Jan and Sordelli (1861) figured the holotype and a skull of the species. Peters and Orejas-Miranda (1970) restricted the type locality to São Marcos, near the confluence of the Uraricuera and Tacutu rivers, both tributaries of the Branco River, Boa Vista Municipality, State of Roraima, Brazil. However, no type specimen was cited by Peters and Orejas-Miranda (1970). Hahn (1980) reported that the holotype of Rena 1 dimidiata was deposited in the Museo Cı́vico di Storia Naturale di Milano and it was later destroyed. According to official site of the institution (http://www.comune. milano.it/), all of Jan’s types described from 1853 to 1866 were destroyed, probably during World War II. Actually, the species is known from two populations (Amazon-Guiana and Espinhaço Range Region) separated by a large geographic hiatus (Silveira, 2004; Pinto, 2010). Although there are some data available (Passos et al., 2006; Adalsteinsson et al., 2009), no evaluation of taxonomic status, hemipenis description or geographic variation has been proposed. The absence of a type and an adequate description do not permit the recognition of the population described by Jan (1861). For this reason, in agreement with ICZN (1999), we hereby designate a neotype for Rena dimidiata ( Jan, 1861) based on the type locality restriction of Peters and OrejasMiranda (1970). Also, we provide data on sexual dimorphism and geographic variation in R. dimidiata and discuss the generic identity of Stenostoma dimidiata Jan, 1861 (presently in Rena, sensu Adalsteinsson et al., 2009) based on morphological data. Lastly, we describe a new species of the genus Tricheilostoma from transitional areas of Tropical Rainforest and Savanna Domains (Ab’Sáber, 2003; Drummond et al., 2005), and typical Savanna Domain of the Espinhaço Range region in Brazil. MATERIALS AND METHODS Descriptions and comparisons are mainly based on external morphology; in addition to examination of specimens, literature data were also considered. Terminology for cephalic plates, scale features, and measurements follows Pinto and Curcio (2011), Broadley and Wallach (2007), and Passos et al. (2006). Meristic and morphometric data follow Pinto and Curcio (2011). Supralabial terminology follows Passos et al. (2006), in which an equation is given for supralabials before ocular scales and supralabials after ocular scales. Measurements were taken with a dial caliper to the nearest 0.1 mm, except for total length (TL) and tail length (TAL), both taken with a graduated ruler to the nearest 1.0 mm. Variation is expressed by the range, providing the mean value followed by the standard deviation in parentheses. Sex was determined through a ventral incision on the base of Universidade Federal do Rio de Janeiro, Museu Nacional, Departamento de Vertebrados, Rio de Janeiro, Rio de Janeiro 20940-040, Brazil; E-mail: (RRR) [email protected]; and (RF) [email protected]. Send reprint requests to RF. Submitted: 23 March 2011. Accepted: 19 October 2011. Associate Editor: B. Stuart. DOI: 10.1643/CH-11-040 F 2012 by the American Society of Ichthyologists and Herpetologists 38 Copeia 2012, No. 1 the tail. Hemipenes were everted and prepared according to Pesantes (1994); hemipenis nomenclature follows Branch (1986). Sexual dimorphism was tested in some variables (middorsal, midventral, and subcaudal scales) using analysis of variance (ANOVA) as well as comparative analyses in the two species: Tricheilostoma dimidiatum and the new species (Zar, 1999). Assumptions of univariate normality and homoscedasticity were evaluated using the test of KolmogorovSmirnov and the Levene’s test, respectively (Zar, 1999). All statistical inference was performed in STATISTICA 7.0 for Windows (Statistica for Windows version 7.0. Statsoft, Inc., Tulsa, Oklahoma, 2004). Institutional abbreviations follow the list available at http://www.asih.org/node/204. Acronyms that were absent or recently changed from the list are as follows: Museu de História Natural Professor Doutor Adão José Cardoso (ZUEC), Campinas, Brazil; Instituto Butantan (IBSP), São Paulo, Brazil; Laboratório de Zoologia de Vertebrados (LZV), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil; Fundação Ezequiel Dias (FUNED), Belo Horizonte, Minas Gerais, Brazil; Coleção Herpetológica da Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil; Museu de Zoologia João Moojen de Oliveira, Universidade Federal de Viçosa (MZUFV), Viçosa, Minas Gerais, Brazil; Coleção Herpetológica da Universidade de Brası́lia (CHUNB), Brası́lia, D.F., Brazil; Museu de Zoologia da Universidade Estadual de Feira de Santana (MZUEFS), Brazil. Tricheilostoma dimidiatum (Jan, 1861), new combination Figures 1, 2 Stenostoma dimidiatum Jan, 1861:188. Stenostoma dimidiatum Jan and Sordelli, 1861:fig. 4, plates V and VI, holotype and skull. Glauconia dimidiata.—Boulenger, 1893:64–65 (first combination in the genus Glauconia, description, distribution). Leptotyphlops dimidiata.—Amaral, 1930 [dated 1929]:139 (first combination in the genus Leptotyphlops, distribution). Leptotyphlops dimidiatus.—Orejas-Miranda, 1967:433–435 (correct spelling, description, distribution). Rena dimidiata.—Hedges, Adalsteinsson, and Branch in Adalsteinsson et al., 2009:11, 20 (first combination in the genus Rena). Neotype.—IBSP 24011 (Fig. 1), adult female, Brazil, State of Roraima, Boa Vista Municipality, São Marcos, 03u059N, 60u259W, elevation 75 m, Alphonse Richard Hoge expedition, 27 May 1964. Diagnosis.—Tricheilostoma dimidiatum can be distinguished from other congeneric species by the following combination of characters: snout rounded in dorsal and ventral views, obtusely rounded in lateral view; supraocular present; ocular subhexagonal with anterior border slightly rounded at eye level and superior border straight; rostral subtriangular in dorsal view, not reaching (67%) or reaching (33%) anterior border of ocular scales; frontal longer than other middorsal cephalic shields, slightly smaller than supraocular; temporal not distinct (74%) or distinct (26%); two supralabials (1+1); four infralabials; robust body width (43.1 6 8.9); 198–215 middorsal in females and 191–214 in males; 185–200 ventral in females and 175–197 in males; 13–16 subcaudal in females and 12–18 in males; fused caudals present; 10 scales Fig. 1. Dorsal (A), lateral (B), and ventral (C) views of the head of the neotype of Tricheilostoma dimidiatum (IBSP 24011). Scale 5 5 mm. around middle of tail; and seven dorsal scales rows with pale brown pigmentation in contrast with seven unpigmented ventral rows that are cream. Description of neotype.—Adult female, TL 222 mm, TAL 15 mm; MB 5.1 mm; MT 3.0 mm; TL/TAL 14.8; TL/MB 43.5; TAL/MT 5.0; HL 6.5 mm, HW 3.4 mm; relative eye diameter 2.4; relative rostral width 0.3. Body subcylindrical, robust, slightly enlarged on the head and slightly tapered caudally near tail. Snout rounded in dorsal and ventral views, obtusely rounded in lateral view; rostral straight in frontal and ventral views, dorsal apex subtriangular, not reaching imaginary transverse line between anterior border of ocular; rostral contacting supranasal and infranasal laterally, and frontal dorsally; nasal completely divided horizontally by Pinto and Fernandes—New Tricheilostoma from Espinhaço Range, Brazil 39 Fig. 2. Geographic distribution of Tricheilostoma dimidiatum (circle) and T. jani (square). Triangle represents the record from Hoogmoed, 1977. Type localities correspond to open symbols. oblique suture crossing nostril; nostril roughly elliptical, obliquely oriented and placed in middle of nasal suture; supranasal nearly twice as high as long, bordering rostral anteriorly, infranasal inferiorly, first supralabial and ocular posteriorly, and frontal and supraocular dorsally; supranasal base as long as upper border of infranasal scale; infranasal almost twice as tall as long; upper lip border formed by rostral, infranasal, anterior supralabial, ocular, and posterior supralabial; temporal single, not distinct in size from dorsal scales of lateral rows; two supralabials, entirely separated by ocular (1+1); anterior supralabial (first supralabial) as high as long, slightly exceeding nostril and eyes inferior limits; posterior supralabial (second supralabial) nearly twice as high as long, crossing nostril and eye inferior limits, its posterior margin in broad contact with temporal; ocular enlarged, subhexagonal, superior border straight, slightly rounded at eye level, almost twice as tall as long, contacting posterior margins of supranasal and first supralabial anteriorly, parietal and second supralabial posteriorly, and supraocular dorsally; eye distinct (diameter 5 0.5 mm), placed in central area of expanded upper part of ocular, displaced above nostril level; supraocular nearly twice as long as wide, slightly longer and not as wide as frontal, between ocular and frontal, contacting supranasal anteriorly, frontal and ocular laterally, and parietal and postfrontal posteriorly; middorsal cephalic shields (postfrontal, interparietal, and interoccipital) subequal in size, subhexagonal in dorsal view, weakly imbricate; frontal longer than wide, longer than other middorsal cephalic shields, slightly smaller than supraocular, contacting rostral, supranasal, supraocular, and postfrontal; postfrontal longer than wide, contacting frontal, supraocular, parietals, and interparietal; interparietal longer than wide, contacting postfrontal, parietals, occipitals and interoccipital; interoccipital wider than long, contacting interparietal, occipitals, and first dorsal scale of the vertebral row; parietal and occipital subequal in shape, irregularly hexagonal; parietal two times wider than long, lower margin contacting upper border of second supralabial, posterior margin contacting respective temporal, occipital, and interparietal, anterior border in broad contact with ocular, supraocular, and postfrontal; occipital almost twice wider than long, its lower limit attaining upper margin of second supralabial, though separated of latter by temporal; symphysial trapezoidal, anterior and posterior borders respectively straight and slightly convex, twice as wide as long; four infralabials behind symphysial on both sides; first three infralabials subequal, somewhat taller than long, not pigmented; third infralabial wider than first two; fourth infralabial distinctively longer than others, nearly three times as long as wide, as long as third supralabial base, not pigmented; head subcylindrical slightly distinguishable from neck, almost twice as long as wide. Middorsal scales 202; midventral scales 189; 14 scales rows around midbody, reducing to ten rows in middle of tail; cloacal shield triangular, almost three times as wide as long; 14 subcaudals; fused caudals present; terminal spine large, conical, twice as long as wide. Dorsal scales homogeneous, cycloid, smooth, weekly imbricate, and nearly twice as wide as long. Coloration in preservative (in alcohol).—Seven dorsal scale rows are uniform pale brown, whereas the seven remaining ventral scale rows are whitish-cream; at least the lower margins of the scales that form the upper lip border are cream colored, following the color of the venter; cloacal shield light brown, but slightly lighter than dorsal pattern and darker than general ventral tonality; terminal spine follows the ventral pattern. 40 Variation.—Middorsal scales 198–215 (205.6 6 4.2, n 5 23) in females and 191–214 (202.5 6 6.6, n 5 8) in males; midventral scales 185–200 (191.5 6 4.0, n 5 20) in females and 175–197 (187.8 6 7.3, n 5 8) in males; subcaudals 13–16 (14.8 6 1.0, n 5 23) in females and 12–18 (16.3 6 2.2, n 5 8) in males; TL 94–281 mm (211.6 mm 6 45.7, n 5 22) in females and 26–233 mm (147.3 mm 6 72.6, n 5 7) in males; TL/TAL ratio 13.3–19.0 (15.1 6 1.3, n 5 23) in females and 5.2–16.8 (12.2 6 3.4, n 5 8) in males; TAL 5.3–7.5% of the TL (6.7% 6 0.0, n 5 23) in females and 5.9–19.2% (9.1% 6 0.0, n 5 8) in males; TL/MB ratio 32.9–59.9 (44.7 6 6.4, n 5 23) in females and 12.5–56.6 (38.5 6 13.4, n 5 8) in males; TAL/ MT ratio 2.4–5.9 (4.0 6 0.7, n 5 23) in females and 2.8–6.0 (4.5 6 1.2, n 5 8) in males; relative eye diameter 1.5–2.9 (2.0 6 0.4, n 5 22) in females and 1.9–2.1 (2.0 6 0.1, n 5 5) in males; relative rostral width 0.3–0.5 (0.4 6 0.0, n 5 21) in females and 0.3–0.4 (0.4 6 0.0, n 5 7) in males. Sexual dimorphism.—Males have significantly more subcaudal scales (F1,29 5 6.1, P , 0.05) than females. No dimorphism was found in middorsal scales (F1,29 5 2.4, P 5 0.13) or midventral scales (F1,26 5 3.0, P 5 0.09). Females have a greater relative total length (F1,29 5 11.7, P , 0.001) than males. Distribution and habitat.—Brazilian Amazonian lowlands of the Guiana region and Surinam (Fig. 2). The neotype was found on the ground under leaves of the ‘‘Buriti’’ palm. Hoogmoed (1977) found this species in dry regions in a transition area of Savanna Domain and lower vegetation in Surinam, suggesting that the species has a Centro-Roraima distribution as suggested by Müller (1973). Peters and Orejas-Miranda (1970) recorded this species in southeastern Venezuela. However, no voucher specimen in this study was found from this region, so this record is probably doubtful. Remarks.—Boulenger (1893) listed the species (Glauconia dimidiata) in a previous description mostly translated from the original description of Jan (1861). Orejas-Miranda (1967) redescribed the species (Leptotyphlops dimidiatus) based on several individuals from septentrional Brazil and Guiana. The type locality restriction of Peters and Orejas-Miranda (1970) was not based on any information from the original description or additional specimens. Possibly, the specimens studied by Orejas-Miranda (1967) are from São Marcos, Boa Vista municipality, Roraima State (IBSP 24008–11), which perhaps influenced the decision made by Peters and OrejasMiranda (1970). Adalsteinsson et al. (2009) recognized Leptotyphlops dimidiatus as a member of the genus Rena (R. dimidiata), although the species was not included in their phylogenetic analysis. According to them, the genus Rena is differentiated from Tricheilostoma by its higher number of middorsal scales (on average), white venter (vs. light brown or brown), and usually two supralabials, so Leptotyphlops dimidiatus was attributed to the genus Rena. Adalsteinsson et al. (2009) stated that the average number of middorsals is given in their table 1; however, in the table only the range is presented: in Tricheilostoma 152–253 and in Rena 168–312. Furthermore, both a lower supralabial number and white venter coloration can be present in each genus. Pinto and Curcio (2011) cited putative characters based on the external morphology of Tricheilostoma, such as middorsal cephalic scales of moderate size and an enlarged terminal Copeia 2012, No. 1 spine. Based on the characters elucidated by Pinto and Curcio (2011), we propose the allocation of Rena dimidiata (sensu Adalsteinsson et al., 2009) to the genus Tricheilostoma (Tricheilostoma dimidiatum, new combination). All specimens studied by Orejas-Miranda (1967) were analyzed in the present study, including additional specimens not seen by that author. We also examined the specimen cited by the author from Cotinga River, Limão municipality, State of Roraima, Brazil (AMNH 36065) identified as Rena affinis (Boulenger, 1884). This individual is in fact a Tricheilostoma dimidiatum (see Comparisons). Orejas-Miranda (1967) suggested that R. affinis may be a synonym of T. dimidiatum or R. affinis could represent a subspecies of T. dimidiatum. During this study we found a large geographic hiatus in the sample, forming two populations: one in GuianaAmazon with specimens just in the north of Amazon near the Guiana region, the other in Espinhaço Range, Savanna Domain, and transitional areas of Tropical Rainforest and Savanna Domain in Minas Gerais State, Brazil (1000– 1750 m). Hahn (1980) noted that the holotype of Tricheilostoma dimidiatum was destroyed. In fact, according to the official website of the Museo Cı́vico di Storia Naturale di Milano, all Jan’s types deposited during 1853–1866 were destroyed, probably during World War II. According to the International Code of Zoological Nomenclature, a neotype designation is justified when no name-bearing type specimen is believe to be extant and an author considers that a namebearing type is necessary to define the nominal taxon objectively (ICZN, 1999:84, article 75.1). Under these conditions, a neotype is validly designated when a statement of the characters that the author regards as differentiating from other taxa the nominal species-group taxon for which the neotype is designated (ICZN, 1999:84, article 75.3.2). Also, when there is evidence that the name-bearing type specimen was lost or destroyed (ICZN, 1999:84–85, article 75.3.4). Based upon these arguments, we believed that the designation of a neotype will bring stability to the name T. dimidiatum. The criterion adopted here to choose a neotype follows the restriction of the type locality by Peters and Orejas-Miranda (1970). Tricheilostoma jani, new species Figures 2–7 Leptotyphlops dimidiatus.—Silveira, 2004:411 (distribution). Leptotyphlops dimidiatus.—Passos et al., 2006:349 (morphometric and meristic variations). Rena dimidiata.—Hedges, Adalsteinsson, and Branch in Adalsteinsson et al., 2009:11, 20 (first combination in the genus Rena). Holotype.—MNRJ 4263 (Figs. 3–4), adult male, Brazil, State of Minas Gerais, Belo Horizonte Municipality, Parque das Mangabeiras, 19u559S, 43u569W, elevation ca. 1000 m, G. Kisteumacher, 1985. Paratypes.—(n 5 21, all from Brazil, State of Minas Gerais): MCN-R 1912, adult female, Municipality of Belo Horizonte, Santo Antônio, 19u579S, 43u569W, C. E. Benfica, 3 May 2005; MCN-R 3647, juvenile female, Municipality of Belo Horizonte, Santo Antônio, Barragem Santa Lúcia, 19u579S, 43u569W, C. E. Benfica, 29 October 2002; UFMG 245, Pinto and Fernandes—New Tricheilostoma from Espinhaço Range, Brazil 41 Fig. 3. Dorsal (A), lateral (B), and ventral (C) views of the head of the holotype of Tricheilostoma jani (MNRJ 4263). Scale 5 5 mm. juvenile male, Municipality of Caeté, Serra da Piedade, 19u499S, 43u409W, ca. 1750 m elevation, C. S. Azevedo, 10 May 1999; UFMG 246, juvenile male, Municipality of Caeté, Serra da Piedade, 19u499S, 43u409W, ca. 1750 m elevation, C. S. Azevedo, 10 May 1999; UFMG 247, juvenile male, Municipality of Caeté, Serra da Piedade, 19u499S, 43u409W, ca. 1750 m elevation, C. S. Azevedo, 10 May 1999; MZUSP 8055, juvenile male, Municipality of Caeté, Serra da Piedade, 19u549S, 43u439W, M. T. Rodrigues, 10 January 1982, field number MTR 82.0031; MZUSP 7583 (everted hemipenis), adult male, Municipality of Santana do Riacho, Alto Palácio, MG-010, km 115, 19u159S, 43u329W, ca. 1200 m elevation, M. T. Rodrigues, 8 June 1980, field number MTR 80.0716; MZUSP 7584, adult female, Municipality of Santana do Riacho, Alto Palácio, MG-010, km 125, 19u159S, 43u329W, ca. 1250 m elevation, M. T. Rodrigues, 8 June 1980, field number MTR 80.0717; MZUSP 18526, adult female, Parque Nacional da Serra do Cipó, 19u159S, 43u339W, ca. 1345 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 17 November 2010, field number MTR 19478; MZUSP 18527, adult female, Parque Fig. 4. Photographs of the holotype of Tricheilostoma jani (MNRJ 4263) in dorsal (A), lateral (B), and ventral (C) views of the head. Scale 5 5 mm. Nacional da Serra do Cipó, 19u169S, 43u319W, ca. 1334 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 17 November 2010, field number MTR 19499; MZUSP 18528, adult male (everted hemipenis), Parque Nacional da Serra do Cipó, 19u169S, 43u319W, ca. 1334 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 17 November 2010, field number MTR 19500; MZUSP 18529, adult female, Parque Nacional da Serra do Cipó, 19u169S, 43u319W, ca. 1320 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 17 November 2010, field number MTR 19501; MZUSP 18530, juvenile female, Parque Nacional da Serra do Cipó, 19u169S, 42 Copeia 2012, No. 1 Fig. 5. Tricheilostoma jani in life in dorsal view (A), lateral view (B–C), and close detail of the head (D). Photos M. Teixeira, Jr. 43u319W, ca. 1320 m elevation, 17 November 2010, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 17 November 2010, field number MTR 19502; MZUSP 18531, adult male (everted hemipenis), Parque Nacional da Serra do Cipó, 19u169S, 43u319W, ca. 1340 m Fig. 6. Hemipenis of Tricheilostoma jani (MZUSP 7583) in asulcate (A) and sulcate (B) sides. Scale 5 5 mm. elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 17 November 2010, field number MTR 19510; MZUSP 18532, adult male (everted hemipenis), Parque Nacional da Serra do Cipó, 19u159S, 43u339W, ca. 1317 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 17 November 2010, field number MTR 19511; MZUSP 18533, juvenile male, Parque Nacional da Serra do Cipó, 19u159S, 43u339W, ca. 1358 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 18 November 2010, field number MTR 19521; MZUSP 18534, adult male, Parque Nacional da Serra do Cipó, 19u159S, 43u339W, ca. 1339 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 20 November 2010, field number MTR 19581; MZUSP 18535, adult male (everted hemipenis), Parque Nacional da Serra do Cipó, 19u159S, 43u339W, ca. 1339 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 20 November 2010, field number MTR 19582; MZUSP 18536, juvenile male, Parque Nacional da Serra do Cipó, 19u179S, 43u359W, ca. 1289 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 21 November 2010, field number MTR 19606; MZUSP 18537, adult male, Parque Nacional da Serra do Cipó, 19u159S, 43u339W, ca. 1345 m elevation, M. T. Rodrigues, J. Cassimiro, M. Teixeira, Jr., R. S. Recoder, and M. A. Sena, 28 November 2010, field number MTR 19712; ZUEC 1227, adult male, Serra do Cipó, Municipality of Santana do Riacho, 19u109S, 43u429W, A. A. Giaretta, 9 November 1991. Diagnosis.—Tricheilostoma jani can be distinguished from other congeneric species by the follow combination of characters: snout truncate in dorsal and ventral view, rounded in lateral view; supraocular present; ocular subhex- Pinto and Fernandes—New Tricheilostoma from Espinhaço Range, Brazil Fig. 7. Habitat of Tricheilostoma jani in Savanna Domain of Serra do Cipó, Minas Gerais. An overview of the Serra do Cipó (A), their ‘‘campos rupestres’’ or rocky meadows (B), and the microhabit of T. jani (C). Photos J. Cassimiro. agonal with anterior border slightly rounded at eye level, and superior border straight; rostral triangular in dorsal view, not reaching (65%) or reaching (35%) anterior border of ocular scales; frontal as long as supraocular and other middorsal cephalic shields; temporal not distinct (50%) or distinct (50%); two supralabials (1+1); four infralabials; slender body width (37.7 6 4.5); 176–206 middorsal in females and 180– 197 in males; 160–188 ventral in females and 161–180 in males; 14–18 subcaudal in females and 15–20 in males; fused caudals present; ten scales around middle of tail; and seven dorsal scales rows with uniform pale brown pigmentation, and the seven unpigmented ventral rows, cream. Comparisons with the Neotropical region leptotyphlopids.— Neotropical region is represented by four genera of the 43 Leptotyphlopidae family (Epictia, Rena, Tricheilostoma, and Siagonodon). In this comparison we will provide generic and specific characters to differ the new species from all those species in the Neotropical region. The presence of supraocular scales distinguishes the new species from all species of Siagonodon, and from Tricheilostoma brasiliensis (Pinto and Curcio, 2011). Tricheilostoma jani can be distinguished from T. dugandi and some species of Epictia, except for E. undecimstriata, E. signata, E. columbi, E. nasalis, E. peruviana, and E. collaris by having no stripes in the dorsal coloration (Orejas-Miranda, 1969; Hoogmoed, 1977; Cei, 1986, 1994; Pinto et al., 2010; Pinto and Curcio, 2011). The presence of fused caudals distinguishes T. jani from T. guayaquilensis and most Siagonodon (except S. borrichianus), and species of Epictia (except E. tenella; Pinto and Curcio, 2011). A subhexagonal ocular with its border anteriorly rounded at the eye level distinguishes T. jani from all species of genera Siagonodon and Epictia. Four infralabials (vs. three) distinguish the new species from R. unguirostris, S. borrichianus, and T. nicefori (Pinto et al., 2010). Ten dorsal scales around the middle of the tail (vs. 12 or 14) separate the new species from T. joshuai, S. acutirostris, S. septemstriatus, E. albipuncta, E. striatula (12), and S. cupinensis (14) (Kretzschmar, 2006; Pinto et al., 2010; Pinto and Curcio, 2011). Tricheilostoma jani is distinguished from R. affinis and R. unguirostris, and all species of Tricheilostoma, except T. dimidiatum and T. nicefori by having two supralabials (1+1) instead of three supralabials (2+1). The presence of a truncate snout in dorsal and ventral views (vs. rounded snout), slender body (vs. robust), and frontal with same size as supraocular (vs. smaller) distinguishes the new species from T. dimidiatum. A frontal scale smaller than the supraocular separates T. dimidiatum from R. affinis (vs. frontal with same size as supraocular). Tricheilostoma jani can be distinguished from R. affinis by less than 210 middorsal scales (vs. 230). For meristic and morphometric comparisons of all species of Tricheilostoma, see Table 1. Individuals of Tricheilostoma dimidiatum have a higher number of middorsal scales (Females: F1,27 5 51.7, P , 0.0001; Males: F1,19 5 33.9, P , 0.0001) and midventral scales (Females: F1,29 5 26.0, P , 0.0001; Males: F1,27 5 67.5, P , 0.0001) than T. jani. Males of T. jani have a higher number of subcaudals (F1,27 5 8.7, P , 0.01) than T. dimidiatum. Moreover, females of T. dimidiatum exhibits a greater proportion of body width (TL/MB; F1,32 5 17.0, P , 0.001) than females of T. jani. The relative total length (TL/ TAL) is greater in T. dimidiatum (F1,32 5 28.6, P , 0.0001) than in T. jani, indicating that the latter species has a smaller proportional width than T. dimidiatum. However, females of T. jani present a greater relative tail length (TAL % in TL; F1,32 5 34.2, P , 0.0001) than T. dimidiatum. Description of holotype.—Adult male, TL 187 mm, TAL 19 mm; MB 4.2 mm; MT 3.8 mm; TL/TAL 9.8; TL/MB 45.1; TAL/MT 5.1; HL 6.2 mm, HW 3.6 mm; relative eye diameter 1.6; relative rostral width 0.3. Body subcylindrical, slender, head slightly enlarged and slightly tapered caudally near tail. Snout truncate in dorsal and ventral views, rounded in lateral view; rostral straight in frontal and ventral views, dorsal apex triangular, reaching imaginary transverse line between anterior border of ocular; rostral contacting supranasal and infranasal laterally, and frontal dorsally; nasal completely divided horizontally by oblique suture (2) (2) (7) (23) (17) (2) (1) (23) (8) (6) (5) (3) (26) (39) (1) (1) (11) (21) (4) (10) (10) (20) (16) (22) (9) (1) (1) (16) (18) (1) F M ? F M M ? F M ? F M F M ? ? F M F M F M F M ? M ? F M ? T. anthracinum T. salgueiroi T. nicefori T. macrolepis T. koppesi T. joshuai T. jani T. guayaquilensis T. fuliginosum T. dugandi T. dimidiatum T. brevissimum T. brasiliensis Sex (n) Species 176–206 180–197 184–199 174–193 195–213 185–212 211–255 218–252 231–254 167 168 209–233 200–223 – 185–193 184–187 182–189 194–224 193–209 152–162 162 198–215 191–214 190–197 181–184 171–174 208–225 198–218 – 253 DO 160–188 161–180 172–187 169–181 182–196 169–195 213–233 201–237 207–233 153 – 188–213 183–207 – 170–176 167–168 – 178–212 171–196 141–152 151 185–200 175–197 174–186 158–160 172 191–208 173–201 210 233 VE 14–18 15–20 13–15 13–17 13–16 13–19 16–22 17–24 18–23 16 13 16–23 17–24 23 16–18 17–18 15–19 13–19 17–20 12–14 13 13–16 12–18 14–15 9–10 12–13 13–17 14–20 15 20 SC 10.3–14.1 7.4–13.7 13.6–24.6 10.8–17.0 13.1–24.2 9.9–16.9 11.3–15.8 8.5–15.9 8.2–13.8 12.9 14.7 10.0–14.5 5.7–12.3 32.4–34.5 36.9–38.3 12.2–16.6 11.3–15.7 9.2–14.6 12.6–13.2 12.6 13.3–19.0 5.2–16.8 14.0–17.4 18.4–30.0 15.5–19.3 11.9–18.4 10.1–14.8 11.7 13.1 TL/TAL 29.9–42.4 31.4–45.4 34.0–55.2 37.8–50.0 29.0–44.6 33.9–47.8 32.2–59.5 37.1–68.3 34.0–53.1 42.9 – 38.2–58.8 25.3–53.4 32.4–34.5 36.9–38.3 31.7–43.7 31.3–59.2 34.5–63.6 32.9–41.3 30.3 32.9–59.9 12.5–56.6 35.0–51.6 27.0–37.5 33.7–52.5 34.8–50.2 34.4–55.1 – 48.6 TL/MB SL 3.0–5.3 3.2–6.2 2.9–3.5 2.8–3.6 1.7–4.5 2.9–4.8 3.8–5.7 4.4–6.7 4.8–7.9 – – 4.0–5.8 4.9–7.4 4 3 4 2+1 1+1 2+1 present 4 4 present 4 2+1 present 4 4 present 4 2+1 present 4 present present present present present present absent 4 4 present SO 4 IL 1+1 3.6–4.6 2+1 5.1–10.1 – 3.2–4.6 2+1 (90.4%) 3.7–5.6 1+1 (4.8%) 3.3 2+1 2.8 2.4–5.9 1+1 2.8–6.0 – 2.4 2+1 2.5–2.6 3.0–4.6 2+1 2.9–5.2 – – 2+1 TAL/MT 10 10 10 10 12 10 12 10 10 10 10 10 10 Midtail scales 1 3 5 3, 4 1 3 6 4 7 3 6 3, 4 2 Color pattern Passos et al., 2005, 2006; Costa et al., 2009; This paper Passos et al., 2006; Pinto et al., 2010 Passos et al., 2005, 2006; This paper Passos et al., 2005, 2006; Pinto et al., 2010; This paper Pinto et al., 2010 Orejas-Miranda and Peters, 1970; This paper This paper Passos et al., 2006; Pinto et al., 2010 Hoogmoed, 1977; Passos et al., 2005, 2006; This paper Passos et al., 2006; Pinto et al., 2010 Passos et al. 2006; This paper Pinto and Curcio, 2011 Bailey, 1946; Passos et al., 2006; This paper Source of data Table 1. Meristic and Morphometric Variation in Species of Tricheilostoma. DO = middorsal scales; VE = midventral scales; SC = subcaudals; SL = supralabials; IL = infralabials; SO = supraocular. Color pattern modified from Passos et al. (2006): 1 = uniform dark brown dorsally and pale brown ventrally; 2 = uniform violet black dorsally and ventrally; 3 = uniform brown dorsally and cream ventrally; 4 = uniform dark brown dorsally and cream ventrally; 5 = reticulate dark brown dorsally and reticulate pale brown ventrally; 6 = uniform brown dorsally and pale brown ventrally; 7 = brown with lighter striping dorsally and cream ventrally. 44 Copeia 2012, No. 1 Pinto and Fernandes—New Tricheilostoma from Espinhaço Range, Brazil crossing nostril; nostril roughly elliptical, obliquely oriented and placed in middle of nasal suture; supranasal higher than longer, bordering rostral anteriorly, infranasal inferiorly, first supralabial and ocular posteriorly, and frontal and supraocular dorsally; supranasal base as long as upper border of infranasal scale; infranasal taller than long; upper lip border formed by rostral, infranasal, anterior supralabial, ocular, and posterior supralabial; temporal distinct in size from dorsal scales of lateral rows; two supralabials, entirely separated by ocular (1+1); first supralabial almost twice as tall as long, exceeding nostril and eye levels, higher than second supralabial; second supralabial taller than long, crossing nostril and contact eye levels, its posterior margin in broad contact with temporal; ocular enlarged, subhexagonal, superior border straight, slightly rounded at eye level in anterior border, higher than long, contacting posterior margins of supranasal and first supralabial anteriorly, parietal and second supralabial posteriorly, and supraocular dorsally; eye distinct (diameter 5 0.9 mm), placed in central area of expanded upper part of ocular, displaced above nostril level; supraocular longer than wide, as long as frontal, between ocular and frontal, contacting supranasal anteriorly, frontal and ocular laterally, and parietal and postfrontal posteriorly; middorsal cephalic shields (frontal, postfrontal, interparietal, and interoccipital) subequal in size, pentagonal, weakly imbricate; frontal longer than wide, contacting rostral, supranasal, supraocular, and postfrontal; postfrontal longer than wide, contacting frontal, supraocular, parietals, and interparietal; interparietal wider than long, contacting postfrontal, parietals, occipitals, and interoccipital; interoccipital wider than long, contacting interparietal, occipitals, and first dorsal scale of vertebral row; parietal and occipital subequal in shape, irregularly hexagonal; parietal twice as wide as long, lower margin contacting upper border of second supralabial, posterior margin contacting respective temporal, occipital, and interparietal, anterior border in broad contact with ocular, supraocular, and postfrontal; occipital almost twice as wide as long, longer than parietal but less wide, its lower limit attaining upper margin of second supralabial, though separated of the latter by temporal; symphysial trapezoidal, anterior and posterior borders respectively straight and slightly convex, twice as wide as long; four infralabials; first two infralabials subequal, somewhat twice as long as wide, not pigmented; third infralabial wider than first two; fourth infralabial not pigmented, distinctively longer than others, almost twice as long as wide, slightly shorter than third supralabial base; head subcylindrical, slightly distinguishable from neck, nearly two times longer than wide. Middorsal scales 191; midventral scales 169; 14 scales rows around middle of body, reducing to ten rows in middle of tail; cloacal shield triangular, almost two times wider than long; 20 subcaudals; fused caudals present; terminal spine large, conical, longer than wide. Dorsal scales homogeneous, cycloid, smooth, weekly imbricate, and wider than long. Femur claws are externally visible on both sides. Coloration in preservative (in alcohol).—Seven dorsal scale rows uniform pale brown, and seven ventral scale rows cream or light brown pigmented in the center of ventral scales; head coloration follows the dorsal color dorsally and venter color ventrally, or spotted brown pigmented ventrally; lower margins of the scales that form the upper lip border cream colored, as is the venter; cloacal shield cream, 45 following the ventral pattern; terminal spine follows the body pattern. Coloration in life.—Similar color pattern of body to preserved specimens (Fig. 5). Seven dorsal scale rows uniform brown, and seven ventral scale rows pale brown in center of scale with cream border; lower margins of upper lip border cream colored; cloacal shield following the belly pattern; terminal spine follows the body pattern. Hemipenis.—(Everted organ, n 5 5; Fig. 6). Organ single, trumpet-shaped, narrow at base and robust at apex; hemipenial body ornamented with flounces; basal portion covered by one flounce, sometimes small, slightly demarcated from terminal region by a distinctively large flounce on mid-portion of the asulcate side; two well developed flounces, and two other small flounces may be present distally on terminal region of the asulcate side; sulcate side with three to four flounces distributed from the middle to the distal portion of the hemipenial body; sulcus spermaticus single, entering the organ on the basal surface and extending towards the tip; sulcal folds raised and unadorned; apex of distal portion of the organ slightly concave, covered by small papillae. Variation.—Middorsal scales 176–206 (196.8 6 7.9, n 5 11) in females and 180–197 (187.9 6 4.2, n 5 21) in males; midventral scales 160–188 (180.7 6 7.8, n 5 11) in females and 161–180 (169.3 6 4.6, n 5 21) in males; subcaudals 14– 18 (15.6 6 1.5, n 5 11) in females and 15–20 (18.3 6 1.5, n 5 21) in males; TL 93–262 mm (182.8 mm 6 58.3, n 5 11) in females and 92–225 mm (182.0 mm 6 41.6, n 5 21) in males; TL/TAL ratio 10.3–14.1 (12.6 6 1.2, n 5 11) in females and 7.4–13.7 (10.2 6 1.3, n 5 21) in males; TAL 7.1–9.7% of the TL (8.0% 6 0.0, n 5 11) in females and 7.3–13.4% (9.9% 6 0.0, n 5 21) in males; TL/MB ratio 29.9–42.4 (35.8 6 4.3, n 5 11) in females and 31.4–45.4 (37.0 6 3.9, n 5 21) in males; TAL/MT ratio 3.0–5.3 (3.9 6 0.8, n 5 11) in females and 3.2– 6.2 (4.6 6 0.7, n 5 21) in males; relative eye diameter 1.4–2.3 (1.8 6 0.3, n 5 10) in females and 1.4–2.3 (1.7 6 0.2, n 5 20) in males; relative rostral width 0.3–0.4 (0.4 6 0.0, n 5 10) in females and 0.3–0.4 (0.4 6 0.0, n 5 20) in males. Sexual dimorphism.—Females have a higher number of middorsal scales (F1,30 5 17.9, P , 0.001) and midventral scales (F1,30 5 27.7, P , 0.0001) than males; in contrast, males have more subcaudals (F1,30 5 23.4, P , 0.0001) than females. Males have greater diameter of tail in proportion of tail length than females (F1,30 5 5.6, P , 0.05). Females exhibit a greater relative total length (F1,30 5 24.1, P , 0.0001) than males, but males have longest tail in proportion to body length (F1,30 5 18.7, P , 0.001). Distribution and habitat.—Tricheilostoma jani is known to live in different aspects of the transition areas of Savanna and Tropical Rainforest domains and Savanna Domain, ‘‘Campos Rupestres’’ (5montane savanna, rocky fields, or rocky meadows) (Ab’Sáber, 2003; Drummond et al., 2005) in southeastern Brazil. At the present, this new species is limited to the Espinhaço Range region, Brazil (Fig. 2). The records suggest that T. jani is a snake of Tropical Rainforest and Savanna transition areas and typical Savanna Domain, from rocky meadows, characteristic formations of elevations from 1000–1750 m (Fig. 7). One specimen from municipality 46 of Mucugê, state of Bahia (MZUEFS 1232) apparently was identified as the new species; however, this only specimen is broken in parts, making the meristic and morphometric analyses difficult, so we preferred not to consider it in this study. As for most species of leptotyphlopids, the new species is apparently strictly fossorial, constructing tunnels (MZUSP 7583–84; M. Rodrigues, pers. obs.) and can be found in cavities under stones, alone or frequently in pairs. They eventually come out when rain starts and their tunnels apparently become flooded. Some individuals were caught crossing the street during the rain (MCN-R 1912, 3647; C. E. Benfica, pers. obs.). Etymology.—The specific epithet is in homage to Giorgio Jan (in memoriam), an important naturalist and curator of Museo Cı́vico di Storia Naturale di Milano that contributed to the knowledge of these rare snakes. Jan also proposed the name Tricheilostoma as a subgenus of Stenostoma (oldest generic name of leptotyphlopids) in Jan and Sordelli (1860) and Jan (1861), recently resurrected by Adalsteinsson et al. (2009). MATERIAL EXAMINED Literature data are cited in parentheses. Epictia albipuncta: Argentina: Tucumán, IBSP 58886; between Tucumán and Velez, USNM 164255; Salta: Yakulica, MZUSP 8051. Epictia australis: Argentina: Rı́o Negro: Valcheta, MACN 12526 (paratype); Buenos Aires: Tandil, USNM 345499. Epictia goudotti: Colombia: Magdalena: Valley of Rı́o Magdalena, MNHN 1068 (holotype); Cienaga, USNM 144173; Parque Nacional Isla de Salamanca, ICN 7127; PNN Tayrona, Santa Marta, ICN 6196; Cundinamarca: Apulo, MLS 18; Tolima: Ambalema, MLS 19; Honda, MLS 20. Without specific locality, MLS 21 (Pinto et al., 2010). Epictia magnamaculata: Colombia: Arquipielago de San Andrés, Providencia y Santa Catalina, Isla de Providencia, ICN 2629–31, ICN 11172, MLS 1972; Isla de San Andrés, MLS 2038–40. Without specific locality, ICN 2730–34 (Pinto et al., 2010). Epictia munoai: Uruguay: Tacuarembó: Tambores, Pozo Hondo, MNRJ 3306 (paratype; MHNM 068C). Epictia nasalis: Nicaragua: Managua, USNM 16134 (holotype; Pinto and Curcio, 2011). Epictia signata: Colombia: Without specific locality, IBSP 7204. Ecuador: Gualaquiza: Morono-Santiago, USNM 232404 (Pinto et al., 2010). Epictia striatula: Bolivia: Beni: Vaca Dı́ez, Tumi Chucua, USNM 280427; Chuquisaca: Yotala, USNM 281801. Rena affinis: Venezuela: Tachira, BMNH 75.2.26.4 (holotype). Rena unguirostris: Argentina: Córdoba: Cruz Del Eje, BMNH 1946.1.11.52 (holotype); Catamarca: Capital, Águas Coloradas, FML 0689; Póman, Puesto Rı́o Blanco, FML 1399; Tinogasta, Tinogasta, Palo Blanco, FML 1773; 35 km de Tinogasta, Villa Luján (5Rio Colorado), FML 1910; Rı́o Negro: Conesa, General Conesa, FML 1829; Salta: Anta, Finca Pozo Largo, FML 2075, FML 2308; La Rioja: Castro Barros, Chuquis, FML 9620; Paraguay: Chaco: Fortin Guachalla, Rio Pilcomayo, FMNH 44174 (Pinto and Curcio, 2011). Siagonodon borrichianus: Argentina: Patquia, Estancia de Breyer, La Rioja, USNM 73500; Mendonza, MCZ 15900 (Pinto and Curcio, 2011). Copeia 2012, No. 1 Tricheilostoma anthracinum: Ecuador: Baños, UMMZ 92531– 32, 88897; Abitagua, UMMZ 90817, 92533–35 (Bailey, 1946). Tricheilostoma brasiliensis: Brazil: Maranhão: Carolina, CHUNB 52064; Bahia: Barreiras, IBSP 50436, UMMZ 108817; Cocos, CHUNB 51368; Correntina, MNRJ 18392– 93; Piauı́: Estação Ecológica Uruçuı́-Una, MZUSP 12189–92; Tocantins: Babaçulândia, MZUSP 12668; Palmeiras do Tocantins, MZUSP 17713–15; Goiás: PCH Santa Edwiges I [region of Mambaı́], MZUSP 17761–62; Posse, CHUNB 50870; Minas Gerais: Buritizeiro, CHUNB 44545; Formoso, MZUSP 12881–85; João Pinheiro, MNRJ 17802; PARNA Cavernas do Peruaçu, Januária, MZUSP 17716–25; Três Marias, MNRJ 4616; Mato Grosso: APM-Manso, Chapada dos Guimarães, UFMT 0683; Mato Grosso do Sul: Corumbá, UFMT 1159–60, 1162–63 (Pinto and Curcio, 2011). Tricheilostoma brevissimum: Colombia: Antioquia: Sonsón, MCZ 38950 (paratype); Caquetá: Florencia, MLS 3, 1311 (holotype; Pinto et al., 2010). Tricheilostoma dimidiatum: Surinam: Brokopondo: Railway Km 62, RMNH 13479–80; Para: Powakka, RMNH 17835–36, ZMAN 12974, CM 44284 (Hoogmoed, 1977). New data.—Guiana: Upper Takutu-Upper Essequibo: Lethem, FMNH 189352; Karanambo Ranch (river Rupununi), North Savanna Rupununi, Rupununi, USNM 566291; between Wichabai and Isheartun, AMNH 60908; Saint Ignatius, MCZ 115573. Brazil: Roraima: Marco fronteira BV-8 (BR-174), MZUSP 8616, 8812; Boa Vista, MZUSP 9101, 9740–42, 9744, 9836, 9847, 9849–50, 9959, 10090, 10120; Ilha de Maracá, MZUSP 9262–63; São Marcos, Boa Vista, IBSP 24008–10; Baixo Rio Mucujaı́, MZUSP 3731; Maloca Mangueira, MZUSP 9800; Fazenda Salvamento, MZUSP 9987; Fazenda Monte Cristo, MZUSP 9846; Colônia do Apiauı́, Igarapé Serrinha, MZUSP 9244; Rio Cotinga, Limão, AMNH 36065. Tricheilostoma dugandi: Colombia: Atlántico: Barranquilla, MCZ 58785, MLS 1992, 2337, ICN 2025–28, CBB unnumbered (paratype), CBB unumbered (holotype; Pinto et al., 2010). Tricheilostoma fuliginosum: Brazil: Tocantins: Lajeado, IBSP 64368 (paratype); Palmas, CHUNB 11538–39, 12014, 12550, 18319–20, 21854, 21955 (paratypes); U.H.E. Luı́s Eduardo Magalhães, IBSP 64368 (paratype); U.H.E. Lajeados, IBSP 65050–55 (paratypes); Porto Nacional, IBSP 65358, 65581– 83, 66168 (paratypes); Goiás: Minaçú, CHUNB 6055–56, 6101 (paratypes), IBSP 56732–34 (paratypes); Peixe, IBSP 66101–02 (paratypes); Serra da Mesa, MZUSP 11017–18, 11020 (paratypes), 11019, MZUSP 11039–40 (paratypes); Goiás: Minas Gerais: U.H.E. Queimados, MNRJ 10034 (holotype), MNRJ 10686, CHUNB 20348 (paratypes), MCNR 1019; Minas Gerais: Unaı́, CHUNB 20348, 30892, 32869 (paratypes; Passos et al., 2006). New data.—Brazil: Tocantins: Palmas, MZUSP 11513–14; U.H.E. Luı́s Eduardo Magalhães, MZUSP 14618, 14864, 15731; Pedro Afonso, CHUNB 50812; Porto Nacional, IBSP 65368, 65685. Goiás: Colinas do Sul, CHUNB 50422; Minaçú CHUNB 6098; Luziânia, CHUNB 40846–48, 40746–47, 40749, 40789; Serra da Mesa, MZUSP 11041; Três Ranchos, CHUNB 44726, 44750; Monte Alegre de Goiás, CHUNB 50869; São Domingos, CHUNB 40843; Rio Verde, CHUNB 43619. Without specific locality, CHUNB 24608. Tricheilostoma guayaquilensis: Ecuador: Guaylas, Guayaquil, ZMB 4508 (holotype). Pinto and Fernandes—New Tricheilostoma from Espinhaço Range, Brazil Tricheilostoma jani, new species: Brazil: Minas Gerais: Distrito da Chapada, Ouro Preto, LZV 813S; Estação Ecológica do Tripuı́, Ouro Preto, LZV 372S; Pioneiros, Ouro Branco, LZV 578S; Ouro Branco, LZV 778S; Caeté, MZUFV 750; Belo Horizonte, FUNED 339; Ibirité, FUNED 356; Vespasiano, MZUSP 2780. Without specific locality, FUNED 879, MNRJ 16990. Tricheilostoma joshuai: Colombia: Antioquia: Jericó, MLS 11, 13 (holotype), 2646–47 (paratypes), UMMZ 84093, IBSP 7206, 7223, 8919, MHNCSJ 266; Cauca river, MLS 12 (paratype); San Juan river, IBSP 9188; without specific locality, MLS 14 (paratype); Risaralda: Santa Rosa de Cabal, MLS 2048; Valle del Cauca: San Antonio, MVZ 68688; Caldas: Villamaria, MLS 15 (paratype); Salamina, MLS 1857; Quindı́o: Salento, MLS unnumbered (Pinto et al., 2010). Tricheilostoma koppesi: Brazil: Tocantins: Palmas, CHUNB 28150; Goiás: U.H.E. Corumbá, Mineiros, CHUNB 24548, 25712–16, 28151–52, IBSP 58708; São Paulo: Brotas, IBSP 43663; Itirapina, IBSP 58706; Mogi-Guaçú, ZUEC 577; Pirassununga, IBSP 70032, MNRJ 11206; Mato Grosso do Sul: Parnaı́ba, IBSP 45616–17; Terenos, IBSP 8883 (holotype; Passos et al., 2005, 2006). New data.—Brazil: Tocantins: Porto Alegre do Tocantins, CHUNB 38928; Paranã, CHUNB 40813; Goiás: Caldas Novas, MZUSP 11111–12; Mineiros, CHUNB 34117, 28152; PARNA das Emas, MZUSP 15046; PCH Mosquitão, Caiapó river, between Arenópolis and Iporá, MZUSP 17683; São Paulo: Águas de Santa Bárbara, MZUSP 14976–77; Brotas, IBSP 45864. Tricheilostoma macrolepis: without specific locality, ZMB 5722 (Paralectotype). Colombia: Antioquia: Capitan, Briceño, MHUA 14509; Santa Isabel, Remedios, MHUA 14059; Caldas: Victoria, MHUA 14598, Norcasia, El Valle, MHUA 14615; Chocó: without specific locality, MCZ 39705; Córdoba: Pueblo Nuevo, ICN 11337; Urrá, ICN 7677; Huila: Palermo, MLS 2261; Norte de Santander: Ocaña, MLS 16; Zulia, MLS 4; Santander: Bucaramanga, ICN 7299, MLS 1991; Sangil, IBSP 8588; Tolima: Chaparral, MLS 10, 1900; Guamo, MLS 1; Valle del Cauca: Buenaventura, USNM 154031; Calima river, 10 km N El Pailón, USNM 267261; near Cali, 1 km W Yumbo, MCZ 140118; Cali, USNM 151738; Vaupés: Estación Biológica Caparú, ICN 8142–43. Venezuela: Carabobo: Puerto Cabello, ZMB 1434 (lectotype), 5294 (paralectotype; Pinto et al., 2010). New data.—Venezuela: Carabobo, Puerto Cabello, ZMB 5722 (Paralectotype); El Vale, AMNH 59406, UIMNH 94016; Caracas, USNM 62205, 107891; Vargas: Carayaca, IBSP 25801; Falcon: Acosta, MCZ 48752–73, 48918; Mérida: Mérida, MCZ 18862. Brazil: Pará: Canindé, MZUSP 4286, 4308, MPEG 10167; Jacundá, MPEG 16725; São Domingos do Capim, MPEG 8728; Santarém, MPEG 19043, 19094, 19109; Benevides, MPEG 8638; Tucuruı́, IBSP 46915, 47081; Amazonas: Maués, MNRJ 385; Cururu river, MNRJ 386; Rondônia: Ji-Paranã River, MZUSP 7317–18. Tricheilostoma nicefori: Colombia: Santander: Charalá, ICN 5727; Mogotes, MLS 17 (holotype; Pinto et al., 2010). Tricheilostoma salgueiroi: Brazil: Minas Gerais: Governador Valadares, MZUFV 1216; Recreio, MNRJ 7856, 12239; São José da Safira, MZUSP 14262–63; Aimorés, MCN-R 1468–69; Paté, MZUFV 1214; Muriaé, MZUFV 1397, 1519; Espı́rito Santo: Governador Lindemberg, MNRJ 12131–32; Pinheiros, MNRJ 14014–15; Viana, MZUSP 15052–53; Sooretama, 47 MZUSP 2463; Guarapari, MZUSP 15050–51; Domingos Martins, MNRJ 1925; Linhares, MNRJ 1926; Baixo Guandu, IBSP 8876 (holotype); Rio de Janeiro: Cambuci, MNRJ 14487; Niterói, MNRJ 13124, 14245–46, 15422; Rio de Janeiro-Minas Gerais: Pirapetinga–Bom Jesus de Itabapoana, MNRJ 15825 (Passos et al., 2005, 2006; Costa et al., 2009). New data.—Bahia: Fazenda Unacu, São José, MZUSP 9098; Minas Gerais: Resplendor, IBSP 42606; Parque Nacional das Sempre Vivas, MCN-R 2561; Espı́rito Santo: Aracruz, MNRJ 4856. ACKNOWLEDGMENTS We are thankful to V. Wallach (MCZ) and J.Cassimiro (IB/ USP) for helpful comments on the manuscript; V. Wallach (MCZ) for english revision on the manuscript; D. Frost (AMNH), C. McCarthy (BMNH), H. Voris and A. Resetar (FMNH), J. Rosado (MCZ), K. de Queiroz and R. Wilson (USNM), C. Phillips and J. Petzing (UIMNH), J. Faivovich (MACN), A.Prudente (MPEG), P. Garcia (UFMG), F. Franco (IBSP), H. Zaher and C. Mello (MZUSP), G. Colli and M. Zatz (CHUNB), I. Sazima and P. Manzani (ZUEC), G. Cotta (FUNED), M. Pires (LZV), F. Junca (MZUEFS), P. Garcia (UFMG), R. Feio (MZUFV), L. Nascimento (MCN-R) for allowing and facilitating the examination of specimens. We thank R. Mark-Oliver and F. Tillack (ZMB) for sending photos of the holotype of T. guayaquilensis and paralectotype of T. macrolepis (ZMB 5722). We thank M. Rodrigues for sending field information about T. jani; and H. Pinto, M. Rodrigues, M. Teixeira, Jr., R. Recoder, M. de Sena, and J. Cassimiro for specimens recently collected. We also are thankful to J. Cassimiro and M. Teixeira, Jr. for live specimen and habitat photos of T. jani; P. Nascimento (MNRJ) for the line art. We are grateful to Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) and Conselho Nacional de Ciência e Tecnologia (CNPq) for financial support. LITERATURE CITED Ab’Sáber, A. N. 2003. Os domı́nios de natureza no Brasil. Pontencialidades paisagı́sticas. Ateliê Editorial, São Paulo, Brazil. Adalsteinsson, S. A., W. R. Branch, S. Trape, L. J. Vitt, and S. B. Hedges. 2009. Molecular phylogeny, classification, and biogeography of snakes of the family Leptotyphlopidae (Reptilia, Squamata). Zootaxa 2244:1–50. Amaral, A. 1930 [dated 1929]. Ophidios Neotropicos. Memórias do Instituto Butantan 4:138–139. Bailey, J. R. 1946. Leptotyphlops anthracinus, a new blind snake from Eastern Ecuador. Occasional papers of the Museum of Zoology, University of Michigan 492:1–5. Boulenger, G. A. 1893. Catalogue of the snakes in the British Museum (Natural History). Vol. I. Containing the families Typhlopidae, Glauconiidae, Boidae, Ilysiidae, Uropeltidae, Xenopeltidae, and Colubridae Aglyphae. Taylor and Francis, London. Branch, W. R. 1986. Hemipenial morphology of African snakes: a taxonomic review. Part 1. Scolecophidia and Boidae. Journal of Herpetology 20:285–299. Broadley, D. G., and V. Wallach. 2007. A revision of the genus Leptotyphlops in northeastern Africa and southwestern Arabia (Serpentes: Leptotyphlopidae). Zootaxa 1408: 1–78. 48 Cei, J. M. 1986. Reptiles del centro, centro-oeste y sur de la Argentina. Herpetofauna de las zonas áridas y semiáridas. Museo Regionale di Scienze Naturali Torino, Torino, Italy. Cei, J. M. 1994. Reptiles del noroeste, nordeste y este de la Argentina. Herpetofauna de las selvas subtropicales, Puna y Pampas. Museo Regionale di Scienze Naturali 14:464–484. Costa, H. C., R. R. Pinto, and D. J. Santana. 2009. Reptilia, Leptotyphlopidae, Leptotyphlops salgueiroi Amaral, 1954: distribution extension and geographic variation. Check List 5:783–786. Drummond, G. M., C. S. Martins, A. B. M. Machado, F. A. Sebaio, and Y. Antonini. 2005. Biodiversidade em Minas Gerais: Um Atlas para sua Conservacão. Segunda edição. Fundação Biodiversitas, Belo Horizonte, Brazil. Franco, F. L., and R. R. Pinto. 2010 [dated 2009]. Stenostoma albifrons Wagler in Spix, 1824 as nomen dubium and recognition of the name Leptotyphlops tenellus Klauber, 1939 (Serpentes: Leptotyphlopidae). Salamandra 45: 239–244. Hahn, D. E. 1980. Liste der rezenten Amphibien und Reptilien Anomalepididae, Leptotyphlopidae, Typhlopidae. Das Tierreich, Berlin 101:1–93. Hoogmoed, M. S. 1977. On a new species of Leptotyphlops from Surinam, with notes on the other Surinam species of the genus (Leptotyphlopidae, Serpentes). Notes on the Herpetofauna of Surinam V. Zoologische Mededelingen 51:99–123. ICZN (International Commission on Zoological Nomenclature). 1999. International Code of Zoological Nomenclature adopted by the General Assembly of the International Union of Biological Sciences. Fourth edition. International Trust for Zoological Nomenclature, London. Jan, G. 1861. Note sulla famiglia dei tiflopidi sui lori generi e sulle specie del genere Stenostoma. Archivio Per La Zoologia, L’Anatomia e La Fisiologia, Genova 1:178–199. Jan, G., and F. Sordelli. 1860. Iconographie Générale des Ophidiens. Tome premier, Première Iivraison. Chez les auteurs, Milan. Jan, G., and F. Sordelli. 1861. Iconographie Générale des Ophidiens. Tome premier, Deuxième livraison. Chez les auteurs, Milan. Kretzschmar, S. 2006. Revisión histórica y redescripción de Leptotyphlops albipunctatus (Serpentes: Leptotyphlopidae). Cuadernos de Herpetologia 19:43–56. Copeia 2012, No. 1 Müller, P. 1973. The dispersal centres of terrestrial vertebrates in the neotropical realm. A study in the evolution of the Neotropical biota and its native landscapes. Biogeographica 2:1–244. Orejas-Miranda, B. R. 1967. El genero ‘‘Leptotyphlops’’ en la Región Amazónica. Atas do Simpósio sobre a Biota Amazônica 5:421–442. Orejas-Miranda, B. R. 1969. Tres nuevos Leptotyphlops. Comunicaciones Zoologicas Del Museo de Historia Natural de Montevideo 10:1–11. Orejas-Miranda, B. R., and G. Peters. 1970. Eine neue Schlankblindschlange (Serpentes: Leptotyphlopidae) aus Ecuador. Mitteilungen aus dem Zoologischen Museum 46:439–441. Passos, P., U. Caramaschi, and R. R. Pinto. 2005. Rediscovery and redescription of Leptotyphlops salgueiroi Amaral, 1954 (Squamata, Serpentes, Leptotyphlopidae). Boletim do Museu Nacional, Nova Série, Zoologia 520:1–10. Passos, P., U. Caramaschi, and R. R. Pinto. 2006. Redescription of Leptotyphlops koppesi Amaral, 1954, and description of a new species of the Leptotyphlops dulcis group from Central Brazil (Serpentes: Leptotyphlopidae). Amphibia–Reptilia 27:347–357. Pesantes, O. S. 1994. A method for preparing the hemipenis of preserved snakes. Journal of Herpetology 28:93–95. Peters, J. A., and B. R. Orejas-Miranda. 1970. Catalogue of the Neotropical Squamata: Part I. Snakes. Bulletin of the United States National Museum 297:1–347. Pinto, R. R. 2010. Revisão sistemática da subtribo Renina (Serpentes: Leptotyphlopidae). Unpubl. Ph.D. diss, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro. Pinto, R. R., and F. Curcio. 2011. On the generic identity of Siagonodon brasiliensis, with the description of a new leptotyphlopid from Central Brazil (Serpentes: Leptotyphlopidae). Copeia 2011:53–63. Pinto, R. R., P. Passos, J. R. C. Portilla, J. C. Arredondo, and R. Fernandes. 2010. Taxonomy of the threadsnakes of the tribe Epictini (Squamata: Serpentes: Leptotyphlopidae) in Colombia. Zootaxa 2724:1–28. Silveira, A. L. 2004. Leptotyphlops dimidiatus. Geographic distribution. Herpetological Review 35:411. Zar, J. H. 1999. Biostatistical Analysis. Fourth edition. Prentice-Hall, Upper Saddle River, New Jersey.