Home - Taxonomy - Geography - Biodiversity - Literature - Purchase RepFocus Recent updates Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk). Latest update: April 5th, 2026. Taxonomy of the family Colubridae Bibliography of the genus Hydrablabes Biodiversity of the family Colubridae Genus Hydrablabes Bornean Water Snakes Borneo-Wassernattern Borneo-vandsnoge 1891 Hydrablabes Boulenger (type species: Ablabes periops Günther 1872) Contents: 3 species, of which 2 (66.7%) are endemic. Endemism: 0% 100% Remarks: Includes typicus, until recently assigned to the genus Opisthotropis. Distribution: Brunei, Indonesia (Kalimantan), Malaysia (Sabah, Sarawak), Philippines (Palawan). Meristic and other data of the world's snakes. Compiled by V. Wallach Key to abbreviations Head drawings of the genus Hydrablabes. Compiled by V. Wallach Hydrablabes periops Spectacled Water Snake, Yellow-spotted Water Snake Brillen-Wassernatter Brille-vandsnog 1872 Ablabes periops Günther Hydrablabes periops Boulenger 1891 Distribution: Brunei, Indonesia (Kalimantan), Malaysia (Sabah, Sarawak). Hydrablabes praefrontalis Kinabalu Water Snake Kinabalu-Wassernatter Kinabalu-vandsnog 1890 Ablabes periops praefrontalis Mocquard Hydrablabes praefrontalis Boulenger 1891 Distribution: Malaysia (Sabah). Hydrablabes typicus Dwarf Water Snake, Corrugated Water Snake, (Sabah Keelback, Dwarf Mountain Stream Keelback) Zwerg-Wassernatter Dværgvandsnog 1890 Helicopsoides typicus Mocquard Opisthotropis typica Boulenger 1891 Hydrablabes typicus Stuart, Seateun, Chuaynkern, Ren, Bernstein & Phimmachak 2026 Remarks: Until recently assigned to the genus Opisthotropis. Transferred to Hydrablabes by Stuart, Seateun, Chuaynkern, Ren, Bernstein & Phimmachak (2026). Distribution: Brunei, Indonesia (Kalimantan), Malaysia (Sabah, Sarawak), Philippines (Palawan).