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Hydrophis pachycercos FISCHER, 1855

IUCN Red List - Hydrophis pachycercos - Data Deficient, DD
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Higher TaxaElapidae (Hydrophiinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymHydrophis pachycercos FISCHER 1855
Hydrophis pachycercos FISCHER 1856: 44
Hydrophis pachycerios — JAN 1859 (in error)
Hydrophis pachycercos — RASMUSSEN et al. 2007
Hydrophis pachycercos — RASMUSSEN et al. 2011
Chitulia pachycercos — WALLACH et al. 2014: 166 
DistributionIndian Ocean, South Chinese Sea, Vietnam

Neotype locality: obtained from a fish market at Phat Thien, Vietnam.  
Reproductionovoviviparous 
TypesNeotype. ZMUC R 661230, adult female, designated by Rasmussen et al. 2007.
Holotype: ZMH 390, fide Smith (1926), missing fide KHARIN & HALLERMANN 2009 
DiagnosisUnfortunately 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 4656 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSynonymy: Hydrophis pachycercos has been previously synonymized with H. belcheri but revalidated by RASMUSSEN et al. (2007).

Habitat: marine.

Venomous!

Diagnostic characters: Scale rows around neck 26–31; scale rows around body 3–45; ventrals 247–27. Maxillary teeth behind fangs 7–8. Colouration: Body pale yellow above, white below, with pale brown transverse bands fading on the upper part of the flanks. Head white below, black/dark above with pale supralabials and a pale ring around the eyes. 
EtymologyNamed after Greek: Pachy = thick and cercos = hale. The species name pachycercos has been latified by Günther (1864) and followed by later authors. However, following the International Code of Zoological Nomenclature §31.3.2,: a name which is not originally a Latin name can keep its original spelling. Rasmussen et al. 2007 therefore prefer to keep the name pachycercos instead of the later used name pachycercus. 
References
  • Fischer, J. G. 1855. Die Familie der Seeschlangen systematisch beschrieben von J.G. Fischer Dr., ordentl. Lehrer der Realschule des Johanneums. In: Zu der öffentlichen Prüfung, welche mit den Zöglingen der Realschule Dienstag und Mittwoch , den 25. und 26. September 1855, vormittags von 9 Uhr an, in der Aula des Johanneums gehalten werden soll, ladet im Namen sämtlicher Lehrer ergebens ein Dr. Carl Bertheau, Director der Realschule des Johanneums. Hamburg Johann August Meissner, 68 pp.
  • Fischer, J.G. 1856. Die Familie der Seeschlangen. Abhandl. Nat. Ver. Hamburg 3: 1-78 - get paper here
  • Jan, G. 1859. Plan d'une iconographie descriptive des ophidiens et description sommaire de nouvelles espèces de serpents. Rev. Mag. Zool., Paris (2) (11-12): 122-130 - get paper here
  • Kharin, Vladimir E.; Jakob Hallermann 2009. Annotated catalogue of sea kraits (Laticaudidae) and sea snakes (Hydrophiidae) of the herpetological collection of the Zoological Museum, University of Hamburg. Mitt. hamb. zool. Mus. Inst. 106: 51-67
  • RASMUSSEN, ARNE REDSTED; JOHAN ELMBERG, PETER GRAVLUND & IVAN INEICH 2011. Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key. Zootaxa 2894: 1–20 - get paper here
  • Rasmussen,A.R., Gravlund, P.; Nguyen, C. van; Chanhome, L. 2007. A resurrection of Hydrophis pachycercos Fischer 1855 (Serpentes: Elapidae) with a new neotype from the South China sea. Hamadryad 31 (2): 288-298 - 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.
 
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