Archivos de diario de julio 2020

14 de julio de 2020

Angolan House Snake Revision (Boaedon)

A recent revision of the Angolan Boaedon describes 3 new species (B. bocagei , B. branchi and B. fradei), re-validates B. variegatus, assigns B. lineatus var.
lineolatus
to B. variegatus, and elevates B. mentalis to full species status.

The paper also includes a dichotomous key for the identification of these species. Features important in this key include: subcaudal scale, venter pigmentation, midbody scale rows, head scales (top of head), length and thickness of white dorsolateral stripes, chin scales (underside of head), supralabials entering orbit (side of head), body markings, pigmentation of the lower 2-3 dorsal scale rows (so lots of diagnostic photographs will be necessary).


"Figure 2. Confirmed records of Boaedon species in Angola. Orange dots: Boaedon bocagei sp. nov.; Orange star: Boaedon bocagei sp. nov. Type Locality; Blue dots: Boaedon fradei sp. nov.; Blue star: Boaedon fradei sp. nov. Type Locality; Yellow dots: Boaedon branchi sp. nov.; Yellow star: Boaedon branchi sp. nov. Type Locality; Purple dots: Boaedon olivaceus; Red dots: Boaedon virgatus; Green dots: Boaedon fuliginosus; Pink dots: Boaedon mentalis; Brown dots: Boaedon variegatum; Brown star: Boaedon variegatum Type Locality; Black dots: Boaedon angolensis; White star: Boaedon angolensis "

Read the full article here:
Hallermann, J., Ceríaco, L.M., Schmitz, A., Ernst, R., Conradie, W., Verburgt, L., Marques, M.P. and Bauer, A.M., 2020. A review of the Angolan House snakes, genus Boaedon Duméril, Bibron and Duméril (1854)(Serpentes: Lamprophiidae), with description of three new species in the Boaedon fuliginosus (Boie, 1827) species complex. African Journal of Herpetology, pp.1-50.

Publicado el julio 14, 2020 07:56 TARDE por alexanderr alexanderr | 0 comentarios | Deja un comentario

23 de julio de 2020

New Swamp Snake named in honour of Bill Branch

A recent review of Swamp Snakes (Limnophis) from Central Africa describes a new species from the North of Angola. Limnophis branchi is named in honour of Bill Branch, who worked in Angola over the last decade. It is known to occur in seasonal wetlands and is frequently found eating the fish in the fish traps of local fisherman.

Morphology Key:
Limnophis branchi can be distinguished from L. bicolor in having dark markings on the throat and belly and nasal suture in contact with the loreal (not the 1st upper labial).
L. branchi can be distinguished from L. bangweolicus in having dark markings (appearing barred) on the belly and underside of the tail, barred upper lip, a pale dosrolateral stripe only one scale in width (as opposed to 3-4 scales) and lacking any black dorsolateral stripes.


Limnophis branchi

Read the full article here:
Conradie, W., Deepak, V., Keates, C. and Gower, D.J., 2020. Kissing cousins: a review of the African genus Limnophis Günther, 1865 (Colubridae: Natricinae), with the description of a new species from north-eastern Angola. African Journal of Herpetology, pp.1-29.

Publicado el julio 23, 2020 05:43 MAÑANA por alexanderr alexanderr | 0 comentarios | Deja un comentario