Hydromorphus concolor PETERS, 1859

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Higher Taxa	Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Costa Rica Water Snake
Synonym	Hydromorphus concolor PETERS 1859: 277 Hydromorphus clarki DUNN 1942 Hydromorphus clarki — VILLA et al. 1988 Hydromorphus concolor — BAUER et al. 1995: 72 Hydromorphus concolor — SAVAGE 2002 Hydromorphus concolor — WALLACH et al. 2014: 339
Distribution	Guatemala, Honduras, Nicaragua, Costa Rica, Panama; Colombia (vicinity of Buenaventura, locality of Basam; F. Castro, pers. comm.); elevation (Honduras): 900 m Type locality: Costa Rica [by implication]
Reproduction	oviparous
Types	Holotype: ZMB 2493 Holotype: ANSP 23910; Panama, Agua Clara village, nr. Chargres River [Hydromorphus clarki DUNN 1942]
Diagnosis
Comment	Relative abundance in Honduras: rare Type species: Hydromorphus concolor PETERS 1859: 277 is the type species of the genus Hydromorphus PETERS 1859.
References	Bauer, A.M.; Günther,R. & Klipfel,M. 1995. The herpetological contributions of Wilhelm C.H. Peters (1815-1883). SSAR Facsimile Reprints in Herpetology, 714 pp. Crother, B.I. 1989. A Redescription of the Hemipenis of Hydromorphus concolor (Colubridae) with Comments on Its Tribal Allocation Copeia 1989 (1): 227-229. - get paper here Goldberg, S.R. 2006. Note on the Testicular cycle of the costa Rica water Snake, Hydromorphus concolor (serpentes: Colubridae) Bull. Maryland Herpetol. Soc., 42(4): 169-170. - get paper here Hilje B, Chaves G, Klank J, Timmerman F, Feltham J, Gillingwater S, Piraino T, Rojas E 2020. Amphibians and Reptiles of the Tirimbina Biological Reserve: a baseline for conservation, research and environmental education in a lowland tropical wet forest in Costa Rica. Check List 16(6): 1633-1655 - get paper here Höbel, G. 2008. The amphibians and reptiles of the Golfo Dulce region - Los anfibios y reptiles de la región del Golfo Dulce. Stapfia 88, Neue Serie 80 (2008): 305-328 Jansen, M. & G. Koehler 2002. Biogeographische Analyse der Herpetofauna von ausgewählten Hochlandgebieten Nicaraguas. Salamandra 38 (4): 269-286 - get paper here JUSTINEK, UWE 2020. Für 6 Tage auf Schlangensuche in Costa Rica. Ophidia 14 (1): 15-26 Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp. McCranie J R 2011. The snakes of Honduras. SSAR, Salt Lake City, 725 pp. McCranie, J. & Castañeda, F.E. 2005. The herpetofauna of Parque Nacional Pico Bonito, Honduras. Phyllomedusa 4 (1): 3-16 - get paper here McCranie, James R. 2015. A checklist of the amphibians and reptiles of Honduras, with additions, comments on taxonomy, some recent taxonomic decisions, and areas of further studies needed. Zootaxa 3931 (3): 352–386 - get paper here Nelson, C. E. 1966. Systematics and distribution of snakes of the Central American genus Hydromorphus (Colubridae). Texas Journal of Science 18: 365-371. O’Shea, M. 2018. The Book of Snakes. Ivy Press / Quarto Publishing, London, - get paper here Pérez-Santos,C. & Moreno, A.G. 1988. Ofidios de Colombia. Museo reegionale di Scienze Naturali, Torino, Monographie VI, 517 pp. Peters,W. 1859. Über die von Hrn. Dr. Hoffmann in Costa Rica gesammelten und an das Königl. Zoologische Museum gesandten Schlangen. Monatsber. Königl. Preuss. Akad. Wiss. Berlin 1859: 275-278 - get paper here Ray, Julie M. and Patty Ruback 2015. Updated checklists of snakes for the provinces of Panamá and Panamá Oeste, Republic of Panama. Mesoamerican Herpetology 2 (2): 168-188 - 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] Savage,J.M. & Donnelly,M.A. 1988. Variation and systematics in the colubrid snakes of the genus Hydromorphus. Amphibia-Reptilia 9: 289-300 - get paper here Solís, J. M., L. D. Wilson, and J. H. Townsend. 2014. An updated list of the amphibians and reptiles of Honduras, with comments on their nomenclature. Mesoamerican Herpetology 1: 123–144 - get paper here Solorzano, A. 2004. Serpientes de Costa Rica - Snakes of Costa Rica. Editorial INBio, Costa Rica, 792 pp. Solorzano, Alejandro 1989. Notes on the natural history and karyotype of the colubrid snake, Hydromorphus concolor Peters, from Costa Rica. Journal of Herpetology 23 (3): 314-315 - get paper here Sunyer, Javier 2014. An updated checklist of the amphibians and reptiles of Nicaragua. Mesoamerican Herpetology 1 (2): 186–202. - get paper here Townsend, J. H., L. D. Wilson, M. Medina-Flores, E. Aguilar-Urbina, B. K. Atkinson et al. 2012. A premontane hotspot for herpetological endemism on the windward side of Refugio de Vida Silvestre Texíguat, Honduras. Salamandra 48 (2): 92-114 - get paper here Vences M., Franzen M., Flaschendräger A., Schmitt R. & Regös J. 1998. Beobachtungen zur Herpetofauna von Nicaragua: kommentierte Artenliste der Reptilien. Salamandra 34 (1): 17-42 - get paper here Villa J D 1990. Hydromorphus Peters. Central American watersnakes. Catalogue of American Amphibians and Reptiles ( 472: 1-2 - 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. Wilson, L. D., & MEYER, J. R. 1985. The Snakes of Honduras. 2d ed. Milwaukee Publ. Mus. Publ., Biol. & Geol. No. 6, 150 pp.
External links	IUCN Red List National Center for Biotechnology Information http://bee.bio.indiana.edu/~paalexan/costa/pages/Hydromorphus_c_6-03p.html Google images

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