Protobothrops flavirostris GRASSBY-LEWIS, BRAKELS, MAURY, SITTHIVONG, FROHLICH, PAWANGKHANANT, IDIIATULLINA, NGUYEN & POYARKOV, 2025
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Protobothrops flavirostris
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| Higher Taxa | Viperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Vang Vieng lance-headed pit viper Lao: Ngu Phao Ka Ba Khor Kop (ງູເພາົກະບາຄກໍບົ) Russian: Laosskiy habu (Лаосский хабу) |
| Synonym | Protobothrops flavirostris GRASSBY-LEWIS, BRAKELS, MAURY, SITTHIVONG, FROHLICH, PAWANGKHANANT, IDIIATULLINA, NGUYEN & POYARKOV 2025: 49 |
| Distribution | Laos (Vientiane) Type locality: environs of the Khan Kham Cave in Vang Vieng District, Vientiane Province, Laos (elevation 360 m a.s.l.; approximate coordinates: 18.90°N, 102.43°E; exact coordinates are not released for conservation purposes) |
| Reproduction | |
| Types | Holotype. NUOL R.2024.89, adult female, collected by R.J. Grassby-Lewis, P. Brakels, N. Maury and S. Sitthivong on 21 October 2024. |
| Diagnosis | Diagnosis: The new species Protobothrops flavirostris sp. nov. differs from other members of the genus Protobothrops by the following combination of the morphological characters: dorsal scales in 23–21–17 rows, all keeled; ventral scales 215; subcaudal scales 79, all paired; supralabials 7–8; infralabials 10; horn-like projection on supraocular absent; head triangular with a typical lance-shaped pattern on dorsal surface; three faint dark vertical stripes on snout; head blackish-brown with rostral, nasals, preoculars, loreals and the two anterior supralabials, as well as the anterior parts of supraoculars yellow-orange; dorsal surfaces of body and tail brown or greyish-brown, dorsum with large dark reddish-brown cross-shaped blotches, edged with black, somewhat fused together forming an interrupted zigzag line; and a row of large brown ventrolateral blotches on each side. (Grassby-Lewis et al. 2025) Additional details (8168 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | Distribution: see map in Grassby-Lewis et al. 2025: 45 (Fig. 1). |
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