Review of the Dispholidini, with the description of a new genus and species from Tanzania (Serpentes, Colubridae)

Autor:	D.G. Broadley, V. Wallach
Rok vydání:	2002
Předmět:	education.field_of_study biology Dentition Population Zoology General Medicine Subspecies biology.organism_classification Tribe (biology) Tanzania Geography Genus Materials Chemistry Colubridae Rhamnophis education
Zdroj:	Bulletin of The Natural History Museum. Zoology Series. 68
ISSN:	1475-2980 0968-0470
DOI:	10.1017/s0968047002000079
Popis:	The tribe Dispholidini (Bourgeois 1968) is reviewed, paying particular attention to dentition and visceral anatomy. A new genus and species, Xyelodontophis uluguruensis , is described from the Uluguru Mountains in Tanzania. All five genera have enlarged rear maxillary teeth. Thrasops seems to be basal, Rhamnophis shows the development of dagger-like teeth tapering from base to tip, then the other three genera appear to radiate, with Xyelodontophis having more derived dagger teeth broadest in the middle, while Dispholidus and Thelotornis seem to have independently developed enlarged grooved rear fangs. Thrasops schmidti is recognised as a relict evolutionary species. No subspecies of Rhamnophis aethiopissa or Dispholidus typus are recognised, but the population of Dispholidus on Pemba Island probably represents an undescribed species.
Databáze:	OpenAIRE
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