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Heteroliodon occipitalis (BOULENGER, 1896)

IUCN Red List - Heteroliodon occipitalis - Least Concern, LC
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Higher TaxaPseudoxyrhophiidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymPseudoxyrhopus occipitalis BOULENGER 1896: 613
Heteroliodon torquatus BOETTGER 1913: 313
Heteroliodon occipitalis — RAXWORTHY & NUSSBAUM 1994
Heteroliodon occipitalis — GLAW & VENCES 1994: 335
Heteroliodon occipitalis — GLAW, VENCES & NUSSBAUM 2005
Heteroliodon occipitalis — WALLACH et al. 2014: 330 
DistributionS/SW Madagascar

Type locality: SW Madagascar  
Reproductionoviparous 
TypesHolotype: BMNH 1946.1.12.28 
DiagnosisDiagnosis (genus). Aglyphous colubrids; maxillary teeth 12-13; 1-2 posteriormost maxillary teeth enlarged, separated from anterior maxillary teeth by short diastema; dentary teeth 11-14, middle one or two dentary teeth in positions 4-6 greatly enlarged compared to anterior and posterior dentary teeth; loreal scale present; eye large, 0.35-0.54 times head depth at mid-orbit. (Nussbaum & Raxworthy 2000: 491)


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CommentHeteroliodon torquatus has been synonymized with H. occipitalis by RAXWORTHY & NUSSBAUM (1994).

Type species: Pseudoxyrhopus occipitalis BOULENGER 1896: 613 is the type species of the genus Heteroliodon BOETTGER 1913. 
References
  • Boettger, O. 1913. Reptilien und Amphibien von Madagascar, den Inseln und dem Festland Ostafrikas. Pp. 269-375. In: Voeltzkow, A. Reise in Ostafrika in den Jahren 1903-1905. Wissenschaftliche Ergebnisse. Vol. 3. Systematische Arbeiten. Schweizerbart’ sche Verlagsbuchhandlung, Nägele und Sproesser, Stuttgart - get paper here
  • Boulenger, G.A. 1896. Catalogue of the snakes in the British Museum, Vol. 3. London (Taylor & Francis), xiv + 727 pp. - get paper here
  • Cadle, J. E. 1999. The dentation, systematics, and phylogeny of Pseudoxyrhopus and related genera from Madagascar (Serpentes: Colubridae), with description of a new species and a new genus. Bull. Mus. Comp. Zool. Harvard 155 (8): 381-443. - get paper here
  • D'Cruze, Neil; Annette Olsonn, David Henson, Sunil Kumar, and David Emmett. 2009. The Amphibians and Reptiles of the Lower Onilahy River Valley, a Temporary Protected Area in Southwest Madagascar. Herp. Cons. Biol. 4: 62-79 - get paper here
  • Glaw ,F. & Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar. Vences & Glaw Verlag, Köln (ISBN 3-929449-01-3)
  • Glaw, F.; Vences, M. & Nussbaum, R.A. 2005. A new species of Heteroliodon (Reptilia: Squamata: Colubridae) from Montagne des Francais, Far Northern Madagascar. Herpetologica 61 (3): 275-280 - get paper here
  • Nussbaum,R.A. & Raxworthy,C.J. 2000. Revision of the Madagascan snake genus Heteroliodon BOETTGER (Reptilia: Squamata: Colubridae). Herpetologica 56 (4): 489-499 - get paper here
  • Raxworthy C J. Nussbaum R A. 1994. A review of the madagascan snake genera Pseudoxyrhopus, Pararhadinaea and Heteroliodon (Squamata: Colubridae). MISCELLANEOUS PUBLICATIONS MUSEUM OF ZOOLOGY UNIVERSITY OF MICHIGAN (182): I-IV + 1-37 - 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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