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Show 676 MR. STANLEY S. FLOWER ON THE [May 16, 159. HYPSIRHINA JAGORII Peters. Hypsirhina jagorii, Blgr. Cat. Snakes, iii. p. 6. The British Museum Catalogue mentions specimens from Siam received through M . Mouhot, Sir R. Schomburgk, and M r . W . H. Newman. I obtained three in Bangkok and one at Tahkamen, the latter 635 m m . in total length. Hab. Siam. 160. HYPSIRHINA ENHYDRIS (Schneid.). Hypsirhina enhydris, Blgr. Cat. Snakes, iii. p. 6. Siamese. " N g u pla"=" fish-snake," also applied to other species of Homalopsine snakes. This species has been recorded from Penang and Singapore. I obtained one specimen from near Alor Star in Kedah, and two in Bangkok, all belonging to var. A. Colour (in life). The Kedah specimen was coloured as follows :- Above dark olive-brown, with indistinct black longitudinal lines and dark yellowish-olive dorso-lateral lines. Beneath pale yellow, with brown median ventral line, interrupted at the suture of each ventral shield, but uninterrupted and darker under the tail; on each side two brown ventro-lateral lines, the lower one much darker than the upper. Lips yellow. Hab. India, Ceylon, Burma, South China, Cochinchina, Siam, Malay Peninsula, Borneo, Celebes. 161. HYPSIRHINA CHINENSIS Gray. Hypsirhina chinensis, Blgr. Cat. Snakes, iii. p. 8, pl. i. fig. 2. Hab. China, Siam. 162. HYPSIRHINA BOCOURTII Jan. Hypsirhina bocourtii, Blgr. Cat. Snakes, iii. p. 10. Of this species, which was not previously recorded from the Malay Peninsula, I obtained an adult female, 854 m m . in total length, near Alor Kedah, in June 1898, who while in captivity brought forth seventeen young, alive. They were expelled at intervals of from ten to twenty minutes; between whiles she lay quite still, as if exhausted. Tbe young came out head foremost, and were very lively as soon as born, perfectly " at home " in the water, swimming with ease and speed, but very awkward and sluggish on land; as soon as born they proceeded to change their skin. If picked up gently in the hand they were perfectly tame and quiet, but if surprised or pinched they bit with promptitude and vigour. Some new-born young of Hypsirhina enhydris which Cantor observed "refused fishes and aquatic insects " and eventually " expired from inanition" ; but these young H. bocourtii fed freely on small frogs (Rana and Microhyla) when only a day or two old. The new-born young were about 220 m m . in length. Colour (in life). $ . Above very dark olive-brown, with dark yellow spots forming longitudinal lines, and more or less irregular, black-edged, dark yellow, narrow cross-bars. Lips dull yellow, each |