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Trimorphodon tau COPE, 1870

IUCN Red List - Trimorphodon tau - Least Concern, LC

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
SubspeciesTrimorphodon tau latifascia (PETERS 1870)
Trimorphodon tau tau (COPE 1870) 
Common NamesMexican Lyre Snake 
SynonymTrimorphodon tau COPE 1870: 152
Eteirodipsas biscutata — JAN 1863 (part.)
Trimorphodon upsilon COPE 1870: 151
Trimorphodon collaris COPE 1875: 131
Sibon biscutatus — GARMAN 1883: 134 (part.)
Sibon upsilon — GARMAN 1883: 134
Trimorphodon biscutatus — GÜNTHER 1895: 174 (part.)
Trimorphodon upsilon var. collaris — MOCQUARD in DUMÉRIL & BOCOURT 1908
Trimorphodon fasciolata SMITH 1941: 160
Trimorphodon fasciolata — SCHMIDT 1947
Trimorphodon forbesi SMITH 1941: 163
Trimorphodon tau tau — SMITH & DARLING 1952: 85
Trimorphodon tau upsilon — SMITH & DARLING 1952: 85
Trimorphodon upsilon — ZWEIFEL & NORRIS 1955
Trimorphodon tau tau — TANNER 1985: 660
Trimorphodon tau — LINER 1994
Trimorphodon tau — MATA-SILVA et al. 2015
Trimorphodon tau — WALLACH et al. 2014: 745

Trimorphodon tau latifasciata (PETERS 1870)
Dipsas biscutata var. latifascia PETERS 1870: 877
Sibon biscutatum var. latifasciatum — GARMAN 1884: 134
Trimorphodon latifasciata — TAYLOR 1939: 364
Trimorphodon latifasciata — HALL 1951
Trimorphodon latifasciata — DAVIS & SMITH 1953
Trimorphodon tau latifasciata — MCDIARMID & SCOTT 1970
Trimorphodon tau latifasciata — LINER 1994
Trimorphodon tau latifascia — BAUER et al. 1995: 70 
DistributionMexico (Puebla, Guerrero, Aguascalientes, Colima, Durango, Guanajuato, Hidalgo, Jalisco, San Luis Potosí, Michoacan, Morelos, Nayarit, Oaxaca, Sinaloa, Sonora, Zacatecas, Nuevo Leon [HR 30: 114], Aguascalientes, Chihuahua, Tamaulipas, Quéretaro)

latifascia: Puebla, Morelos; Type locality: Puebla [Mexico], by implication; restricted to “Matamoros (IzEucar)” by SMITH & TAYLOR 1950

Type locality: “western part of the Isthmus of Tehuantepec, Mexico (in error); “Quiotepec, Oaxaca” (fide TAYLOR 1949: 210). Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
TypesHolotype: USNM 30338 (tau)
Lectotype: ZMB 6652A (designated by MCDIARMID & SCOTT 1970) [latifascia]
Holotype: USNM 110402 [forbesi]
Holotype: USNM 110400 [fasciolata]
Holotype: USNM 26499 [collaris] 
CommentSynonymy mostly after McDIARMID & SCOTT 1970. 
EtymologyThe specific name is Greek for the letter "T," and refers to the inverted "T-shape" of the pale markings on the interparietal region of the head. 
  • Casas-Andreu, G., F.R. Méndez-De la Cruz and X. Aguilar-Miguel. 2004. Anfibios y Reptiles; pp. 375–390, in A.J.M. García-Mendoza, J. Ordoñez and M. Briones-Salas (ed.). Biodiversidad de Oaxaca. Instituto de Biología, UNAM-Fondo Oaxaqueño para la Conservación de la Naturaleza-World Wildlife Fund, México, D. F.
  • Castro-Franco, Rubén, María Guasalupe Bustos-Zagal 1994. List of reptiles of Morelos, Mexico, and their distribution in relation to vegetation types. Southwestern Naturalist 39 (2): 171-175 - get paper here
  • Cobarrubias, Edgar Flores; Daniel Cruz-Sáenz, and David Lazcano 2012. Notes on the Herpetofauna of Western Mexico 6: Amphibians and Reptiles of Hostotipaquillo, Jalisco, Mexico. Bull. Chicago Herp. Soc. 47 (2):21-26 - get paper here
  • Cope, E.D. 1870. Seventh contribution to the herpetology of tropical America. Proc. Amer. Philos. Soc. 11: 147-169 [1869] - get paper here
  • Cope, E.D. 1875. On the Batrachia and Reptilia of Costa Rica with notes on the herpetology and ichthyology of Nicaragua and Peru. Journal of the Academy of Natural Sciences of Philadelphia N.S. (2) 8: 93-183 [sometimes said to be published 1876 but see Murphy et al. 2007 for clarification]] - get paper here
  • Davis, William B.; Smith, Hobart M. 1953. Snakes of the Mexican state of Morelos. Herpetologica 8: 133-149 - get paper here
  • Dixon, James R. and Julio A. Lemos-Espinal 2010. Amphibians and reptiles of the state of Queretaro, Mexico. Tlalnepantla UNAM, 428 pp.
  • Duméril, M. A.; M. F. Bocourt, and F. Mocquard 1870. Etudes sur les reptiles, p. i-xiv, 1-1012. In: Recherches Zoologiques pour servir a l'Histoire de Ia Faune de l'Amérique Centrale et du Mexique. Mission Scientifique au Mexique et dans l'Amérique Centrale, Recherches zoologiques. Imprimerie Imper., Paris (published in parts1870-1909) - get paper here
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  • Luja VH, López JA, Cruz-Elizalde R, Ramírez-Bautista A 2017. Herpetofauna inside and outside from a natural protected area: the case of Reserva Estatal de la Biósfera Sierra San Juan, Nayarit, Mexico. Nature Conservation 21: 15-38 - get paper here
  • Martin, Plul S. 1958. A biogeography of reptiles and amphibians in the Gomez Farias Region, Tamaulipas, Mexico. Miscellaneous publications, Museum of Zoology, University of Michigan (101): 1-102 + 7 plates - get paper here
  • Mata-Silva, Vicente, Jerry D. Johnson, Larry David Wilson and Elí García-Padilla. 2015. The herpetofauna of Oaxaca, Mexico: composition, physiographic distribution, and conservation status. Mesoamerican Herpetology 2 (1): 6–62 - get paper here
  • McCranie, J.R. & Wilson, L.D. 2001. The herpetofauna of the Mexican State of Aguascalientes. Courier Forschungsinstitut Senckenberg 230: 1-57
  • McDiarmid R W; Scott, N.J. 1970. Geographic variation and systematics status of Mexican lyre snakes of the Trimorphodon tau group (Colubridae). Los Angeles County Mus. Contr. Sci. 179: 1-43 - get paper here
  • PALACIOS-AGUILAR, RICARDO & OSCAR FLORES-VILLELA 2018. An updated checklist of the herpetofauna from Guerrero, Mexico. Zootaxa 4422 (1): 1-24 - get paper here
  • Peters, Wilhem Carl Hartwig 1870. Über mexicanische Amphibien, welche Hr. Berkenbusch in Puebla auf Veranlassung des Hrn. Legationsraths von Schlözer dem zoologischen Museum zugesandt hat. Monatsber. königl. Akad. Wiss. Berlin. 1869 (December): 874-881 - get paper here
  • Quintero-Díaz, G. E., and R. A. Carbajal-Márquez. 2017. Trimorphodon tau Cope, 1870. Maximum elevation. Mesoamerican Herpetology 4(1): 183–184 - get paper here
  • Schmidt, Karl P.;Shannon, Frederick A. 1947. Notes on amphibians and reptiles of Michoacan, Mexico. Zoological Series of Field Museum of Natural History 31 (9): 63-85
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  • Smith, Hobart M. 1941. Notes on the snake genus Trimorphodon. Proc. US Natl. Mus. 91 (3130): 149-168 - get paper here
  • Smith, Philip W.;Darling, Donald M. 1952. Results of a herpetological collection from eastern central Mexico. Herpetologica 8: 81-86 - get paper here
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  • Vázquez Díaz, Joel;Quintero Díaz, Gustavo E. 2005. Anfibios y Reptiles de Aguascalientes [2nd ed.]. CONABIO, CIEMA, 318 pp.
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  • Zweifel,R.G. and Norris,K.S. 1955. Contributions to the herpetology of Sonora, Mexico:Descriptions of new subspecies of snakes (Micruroides euryxanthus and Lampropeltis getulus) and miscellaneous collecting notes. American Midland Naturalist 54: 230-249 - get paper here
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