Heteroliodon occipitalis (BOULENGER, 1896)

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Higher Taxa	Pseudoxyrhophiidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names
Synonym	Pseudoxyrhopus 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
Distribution	S/SW Madagascar Type locality: SW Madagascar
Reproduction	oviparous
Types	Holotype: BMNH 1946.1.12.28
Diagnosis	Diagnosis (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) Additional details (3598 characters) are available for collaborators and contributors. Please contact us for details.
Comment	Heteroliodon 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.
Etymology	Named after Latin occiput = "back of the skull", from ob- = "against, behind" and caput = "head", for the prominent, light-colored, dorsolateral neck band in this genus (of which occipitalis is the type species). The genus was apparently named after Greek heteros (ἕτερος), of another kind, different, Greek leios (λείος), smooth, plain, and Greek odous (ὀδούς), tooth, for the heterogenous teeth in this genus.
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.
External links	IUCN Red List National Center for Biotechnology Information Google images

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