On two little known African water snakes (Crotaphopeltis degeni and C. barotseensis)

On two little known African water snakes (Crotaphopeltis degeni and C. barotseensis) On two little known African water snakes (Crotaphopeltis degeni and C. barotseensis) Jens Bødtker Rasmussen Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark Abstract. Degen's Water Snake (Crotaphopeltis degeni) and the Barotse Water Snake (C. barotseensis) are two little known members of the almost Pan-African snake genus, Crotaphopeltis. An examination of all available material deposited in museums provides records of C. degeni from Tanzania and Cameroon which are outside the previously known geographical range. Populations of C. degeni differ in respect to number of ventrals and caudals, the relative position of the heart and the ornamentation of the hemipenes. As the variation of the various characters is discordant, no nomenclatural conclusions have been reached. The few observations on the biology of these species have been accumulated. Introduction Since the early eighties a study of the members of the two African sister genera Cro- taphopeltis and Dipsadoboa has been conducted. While a revision of the latter genus has appeared (Rasmussen, 1993b and earlier papers) only minor contributions have so far been presented on the genus Crotaphopeltis (Rasmussen, 1985, 1993a). As the treatment of C. hotamboeia will involve a lot more time-consuming labour, due to its abundance http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Amphibia-Reptilia Brill

On two little known African water snakes (Crotaphopeltis degeni and C. barotseensis)

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Publisher
BRILL
Copyright
© 1997 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0173-5373
eISSN
1568-5381
D.O.I.
10.1163/156853897X00062
Publisher site
See Article on Publisher Site

Abstract

On two little known African water snakes (Crotaphopeltis degeni and C. barotseensis) Jens Bødtker Rasmussen Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark Abstract. Degen's Water Snake (Crotaphopeltis degeni) and the Barotse Water Snake (C. barotseensis) are two little known members of the almost Pan-African snake genus, Crotaphopeltis. An examination of all available material deposited in museums provides records of C. degeni from Tanzania and Cameroon which are outside the previously known geographical range. Populations of C. degeni differ in respect to number of ventrals and caudals, the relative position of the heart and the ornamentation of the hemipenes. As the variation of the various characters is discordant, no nomenclatural conclusions have been reached. The few observations on the biology of these species have been accumulated. Introduction Since the early eighties a study of the members of the two African sister genera Cro- taphopeltis and Dipsadoboa has been conducted. While a revision of the latter genus has appeared (Rasmussen, 1993b and earlier papers) only minor contributions have so far been presented on the genus Crotaphopeltis (Rasmussen, 1985, 1993a). As the treatment of C. hotamboeia will involve a lot more time-consuming labour, due to its abundance

Journal

Amphibia-ReptiliaBrill

Published: Jan 1, 1997

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