Trimetopon gracile (GÜNTHER, 1872)

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Higher Taxa	Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Günther's Tropical Ground Snake
Synonym	Ablabes gracilis GÜNTHER 1872: 18 Trimetopon gracile — COPE 1885: 177 Trimetopon gracile — DUNN 1930: 331 Trimetopon gracile — VILLA et al. 1988 Trimetopon gracile — SAVAGE 2002 Trimetopon gracile — WALLACH et al. 2014: 743
Distribution	Costa Rica Type locality: Cartago, Costa Rica
Reproduction	oviparous
Types	Syntypes: BMNH 71.11.22.19-20 (Holotype BMNH 71.11.22.19 - RR BMNH 1946.1.1.1); (Paratype BMNH 71.11.22.20 - RR BMNH 1946.1.1.2, One of the types of Trimetopon gracile) (No.71.11.22.20 = T. pliolepis fide C.W. Myers 1963)
Diagnosis	Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 2629 characters), are available for collaborators and contributors. Please contact us for details.
Comment	Type species: Ablabes gracilis GÜNTHER 1872: 18 is the type species of the genus Trimetopon COPE 1885. Synonymy: Dunn 1930 included pliolepis as a synonym in gracile. Key: Dunn 1930 presented a key to the 3 species of Trimetopon he recognized (gracile including pliolepis, simile, and barbouri)
Etymology	Named after Latin gracile, slender, thin, slim. [“...Body and tail slender, subcylindrical; head narrow, not distinct from neck...”]. The genus was named after Greek tria (τρία), three + Greek metopon (μέτωπον), the space between the eyes, the brow, forehead. ["...Two internasals; one prefrontal plate…"].
References	Cope, E.D. 1885. Twelfth contribution to the herpetology of tropical America. Proc. Amer. Philos. Soc. 22: 167-194 [1884] - get paper here Dunn, E. R. 1930. New snakes from Costa Rica and Panamá. Occ. Pap. Boston Soc. Nat. Hist. 5: 329-332. Günther,A. 1872. Seventh account of new species of snakes in the collection of the British Museum. Ann. Mag. Nat. Hist. (4) 9: 13-37 - get paper here Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp. Sasa, M., Arias, E., & Chaves, G. 2025. Annotated list of amphibians and reptiles of Costa Rica: The role of the Museum of Zoology in cataloging the country’s herpetological diversity. Revista de Biología Tropical, 73(S2): e64536-e64536 - get paper here Savage, J.M. 2002. The Amphibians and Reptiles of Costa Rica: A Herpetofauna Between Two Continents, Between Two Seas. University of Chicago Press, 934 pp. [review in Copeia 2003 (1): 205] Solorzano, A. 2004. Serpientes de Costa Rica - Snakes of Costa Rica. Editorial INBio, Costa Rica, 792 pp. Taylor,E.H. 1951. A brief review ot the snakes of Costa Rica. Univ. Kansas Sci. Bull. 34 (1): 3-188 - get paper here Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
External links	IUCN Red List National Center for Biotechnology Information Google images

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