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Enhydris subtaeniata (BOURRET, 1934)

IUCN Red List - Enhydris subtaeniata - Least Concern, LC
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Higher TaxaHomalopsidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Mekong Mud Snake 
SynonymHypsirhina enhydris subtoeniata BOURRET 1934: 9
Hypsirhina enhydris subtaeniata BOURRET — 1934: 10
Hypsirhina enhydris subtaenia’a BOURRET — 1934: 3 (in error)
Enhydris subtaeniata — KARNS et al. 2005
Enhydris subtaeniata — VORIS 2006
Enhydris subtaeniata — MURPHY 2007: 166
Enhydris subtaeniata — KARNS et al. 2010
Enhydris subtaeniata — MURPHY & VORIS 2014: 18
Enhydris subtaeniata — WALLACH et al. 2014: 273 
DistributionThailand, Laos, Vietnam, Cambodia

Type locality: Kompong Speu, Cambodia  
Reproductionviviparous (not imputed, fide Zimin et al. 2022) 
TypesLectotype: MNHN-RA 1958.0474, designated by MURPHY 2007; paralectotypes: MNHN-RA 1938.0142 and MNHN-RA 1958.0473 
DiagnosisDiagnosis: Ventral scales number 136–153; color pattern contains stripes and lateral spots. Presence of lateral spots and ventral counts separate this species from its sister species, E. enhydris, which has 153–174 ventral scales. Enhydris subtae- niata has two or three pairs of elongated chin shields, rather than the flared condition found in jagorii and its relatives (chanardi, innominata, longicauda). Both E. enhydris and E. subtaeniata have dorsal scales with striations, which do not occur in other members of the genus (MURPHY & VORIS 2014). 
CommentSynonymy: SMITH 1943 synonymized this species with E. jagorii but revalidated by MURPHY 2007. Bourret 1934 used 3 different spelling variants of “subtaeniata” in his paper, with “subtoeniata in the actual description. However, since he used “subtaen-” twice elsewhere, it is probably the intended spelling.

Distribution: records of E. jagorii from Vietnam are E. subtaeniata (Sang et al. 2009).

Habitat: freshwater

Diet: mostly fish 
EtymologyProbably named after Latin “sub” (= under) and “taenia” (= ribbon), referring to the striped pattern on the belly of this species. 
References
  • Bourret, R. 1934. Notes herpétologiques sur l'Indochine Française IV. Sur une collection d’ophidiens de Cochinchine et du Cambodge. V. Sure Liopeltis major et ses alliés. Bull. Instr. Pub. Gen. Hanoi Sept. 1934: 13-125 (in print 3-20)
  • Chan-ard, T., Parr, J.W.K. & Nabhitabhata, J. 2015. A field guide to the reptiles of Thailand. Oxford University Press, NY, 352 pp. [see book reviews by Pauwels & Grismer 2015 and Hikida 2015 for corrections] - get paper here
  • Karns, D.R.; Murphy, J.C.; Voris, H.K. & Suddeth, J.S. 2005. Comparison of Semi-aquatic Snake Communities Associated with the Khorat Basin, Thailand. The Natural History Journal of Chulalongkorn University 5(2): 73-90 - get paper here
  • KARNS, DARYL R.; VIMOKSALEHI LUKOSCHEK; JENNIFER OSTERHAGE; JOHN C. MURPHY & HAROLD K. VORIS 2010. Phylogeny and biogeography of the Enhydris clade (Serpentes: Homalopsidae). Zootaxa 2452: 18–30 [erratum in Zootaxa 2514: 68] - get paper here
  • Knierim, T., et al. 2017. Enhydris subtaeniata (Mekong Mud Snake) Diet. Herpetological Review 48 (2): 448-449 - get paper here
  • Murphy, J.C. & Voris, H.K. 2014. A Checklist and Key to the Homalopsid Snakes (Reptilia, Squamata, Serpentes), with the Description of New Genera. FIELDIANA: LIFE AND EARTH SCIENCES (8): 1–43 - get paper here
  • Nguyen, S.V., Ho, C.T. and Nguyen, T.Q. 2009. Herpetofauna of Vietnam. Chimaira, Frankfurt, 768 pp.
  • Nguyen, Tan Van; Loi Duc Duong, Tho Thi Anh Duong 2019. NEW RECORDS AND UPDATED LIST OF SNAKES (SQUAMATA: SERPENTES) FROM BINH DINH PROVINCE, CENTRAL-SOUTHERN VIETNAM. Hue University Journal of Science: Natural Science 128 (1B): 35-41 - get paper here
  • Thinh, Bui Bao; <br />Trinh Thi Hong; <br />Hoang Ngoc Thao; Bui Bao Thien 2018. Initial building the sample sets of amphibians and reptiles in the Hong Duc University (Viet Nam). Постулат. 2018. No12 УДК 597.6 + 598.1 - get paper here
  • Voris, H.K. 2006. Assessment of Biodiversity among Southeast Asian Amphibians and Reptiles. The Natural History Journal of Chulalongkorn University 6(1): 1-10 - 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.
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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