Prosymna confusa CONRADIE, KEATES, BAPTISTA & LOBÓN-ROVIRA, 2022
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Prosymna confusa
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| Higher Taxa | Prosymnidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Plain Shovel-snout Snake Portuguese: Cobra-de-focinho-de-pá-lisa |
| Synonym | Prosymna confusa CONRADIE, KEATES, BAPTISTA & LOBÓN-ROVIRA 2022 Prosymna angolensis — BOGERT 1940: 59 (in part) Prosymna angolensis — MONARD 1937: 123 (in part) Prosymna angolensis — BROADLEY 1980: 152 (in part). Prosymna ambigua — BRANCH 2018: 64, fig. 24 Prosymna ambigua — PIETERSEN et al. 2021: 96 |
| Distribution | Angola (Namibe Province) Type locality: 20 km west of Lola on the road northwest to Camacuio, on the edge of Bentiaba River (-14.27583, 13.45806, 791 m a.s.l.), Namibe Province, Angola |
| Reproduction | |
| Types | Holotype: PEM R24013, female, collected by William R. Branch, Pedro Vaz Pinto and João S. de Almeida on 2 November 2015. Additional material tentatively assigned to the new species: AMNH 50504, Capelongo, approx. -14.46645, 16.29241, Huíla Province, Angola (Bogert 1940: 59); Ebanga, approx. -12.73333, 14.73333, Benguela Province, Angola (Monard 1937: 123). |
| Diagnosis | Diagnosis: The new species differs from other Prosymna species in the following characters: rostral sharply depressed and angular (vs. rounded in P. visseri); presence of a single band-like internasal (vs. paired internasals in P. somalica, P. bivittata, P. sundevalli, P. lineata); dorsal scales smooth (keeled in P. janii); midbody scale rows 15–17 (vs. 19–21 in P. pitmani); six supralabials, with 3rd and 4th entering orbit (vs. five supralabials, with 2nd and 3rd entering orbit in P. meleagris and P. greigerti); single apical pits on dorsal scales (vs. paired apical pits in P. ruspolii); lower number of ventral scales in both sexes (116–129 vs. 153–199 in P. frontalis); dorsum uniform dark grey (vs. scarlet head and dark body in P. ornatissima). It further differs from its closest congeners in the angolensis group: one postocular (vs. two in P. lisima sp. nov.), dorsum uniform grey (vs. dorsum with large mostly fused black blotches in P. lisima sp. nov. and mostly smaller paired longitudinal rows of grey to black spots in P. angolensis), postorbital bone absence (vs. present in P. lisima sp. nov.), presence of two well-develop palatine teeth (vs. four to five in P. lisima sp. nov. and three reduced teeth in P. angolensis), fused braincase (vs. unfused in P. angolensis and P. lisima sp. nov.) and two frontal foramina (vs. three to four in P. angolensis and P. lisima sp. nov.). (Conradie et al. 2022) Additional details (3819 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | |
| Etymology | The name confusa is a reflection of the confusion this specimen has caused and of the general confusion in the P. angolensis group. |
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