Psammophis ansorgii BOULENGER, 1905
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Psammophis ansorgii
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| Higher Taxa | Psammophiidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Ansorge’s Sand Snake, Link-marked Sand Racer |
| Synonym | Psammophis ansorgii BOULENGER 1905: 113 Psammophis ansorgii — DE WITTE 1933 Psammophis jallae — LOVERIDGE 1940: 6, 63 (part.) Psammophis ansorgii — HELLMICH 1957: 69 Psammophis ansorgii — BROADLEY 1977: 13 Psammophis ansorgii — BROADLEY 2002: 98 Psammophis ansorgii — WALLACH et al. 2014: 576 Psammophis ansorgii — BRANCH et al. 2019 |
| Distribution | Angola (central highlands, elevation up to 2286 m) Type locality: Benguela to Bihe, Angola. Restricted to between Chinguar (12°33'S,16°20'E, elevation 1812 m a.s.l.) and Cunhangamua River (12°56'S,15°44'E, elevation 1600 m a.s.l.), Bié Province, Angola, by Branch et al. 2019: 358. |
| Reproduction | oviparous |
| Types | Holotype: BMNH 1946.1.8.49, a 700 mm male (W.J. Ansorge, end of 1904). |
| Diagnosis | Description: (Type data, additional data from Hellmich 1957) Nostril pierced between 2 or nasals; preocular 1, usually separated from frontal; postoculars 2; temporals usually 2+2+; supralabials 7, the third & fourth entering orbit; infralabials 9, the first 4 in contact with anterior sublinguals; dorsal scales in 15- 15-1 rows; ventrals 15-160; cloacal shield divided; subcaudals 70-78. Dorsum uniform light grey-brown, pre- And post-oculars yellow, a black-edged yellow stripe on supralabials. Ventrum uniform yellowish- white [from BROADLEY 2002]. Description. A medium-sized sand snake (maximum 75cm). Nostril pierced between 2 or 3 nasals; preocular 1, usually separated from frontal; postoculars 2; temporals usually 2+2+3 (sometimes 2+1); supralabials 7, the third & fourth entering orbit (sometimes 2–3 or 2–4); infralabials 8–9, the first 4 in contact with anterior sublinguals; dorsal scales in 15-15-13 (sometime 15-15-11) rows; ventrals 152–161; cloacal shield divided; subcaudals 70–78. Dorsum grey-brown to reddish brown, usually uniform but sometimes with a fine ‘ladder’ pattern on the forebody due to black-edged dorsal scales. Head uniform grey-brown on crown, but with characteristic ivory-coloured pre- and post-oculars and a black-edged ivory-cream stripe on supralabials. Ventrum unpatterned with a white-edged yellowish centre, and brighter yellow below tail. Scalation details of specimen are summarized in Branch et al. 2019: 352 (Table 3). Size: Maximum size: 555 + 195 = 750 mm (Hellmich 1957—Bela-Vista, Angola). (from Branch et al. 2019: 358). |
| Comment | Habitat: Montane grassland at 1800 m. |
| Etymology | Named after Dr. William John Ansorge (1850-1913), an explorer, collector, and writer in Africa who wrote Under the Aftican Sun (1899). |
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