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Show 680 MR. STANLEY S. FLOWER ON THE [May 16, from Bangkok. In the Kuala Lumpor Museum there is a specimen caught at Pulo Angsa, on the coast of Selangor. Hab. Mouths of rivers and coasts of Pegu, Siam, and Malay Peninsula. 169. HERPETON TENTACULATUM Lacep. Herpeton tentaculatum, Blgr. Cat. Snakes, iii. p. 25. Siamese. " Ngu kra-dahng." There is in the Siamese Museum a specimen of this singular snake labelled " Siam," and I obtained two more, caught in different parts of the town of Bangkok. The larger, about 630 mm. in length, had recently swallowed a fish when caught. In life the tentacles on the snout are soft, capable of expansion and retraction, and apparently very sensitive ; tbe snake constantly moves them about, as if they performed the function of the antennae of Arthropods. W h y this particular reptile is thus furnished it is difficult, in our present state of knowledge, to imagine, seeing that other snakes use their tongue as a feeler. When the specimen is placed in •spirits the tentacles retract and are not so conspicuous as they are in life. Hab. Siam, Cochinchina. Subfamily DiPSADOMORPHiNiE. 170. DIPSADOMORPHUS MULTIMACULATUS (Boie). Dipsadomorphus multimaculatus, Blgr. Cat. Snakes, iii. p. 63. Cantor mentions this species from the hills of Penang and the Peninsula, and M. Mouhot obtained a specimen at Pachebone, Siam. There is one in the Siamese Museum labelled " Siam," and I obtained another in Bangkok, 625 mm. in length, with 19 rows of scales. Hab. Burma, South China, Siam, Malay Peninsula, Sumatra, Java, Celebes. 171. DIPSADOMORPHUS GOKOOL (Gray). Dipsadomorphus gokool, Blgr. Cat. Snakes, iii. p. 64. Hab. Bengal, Assam, Malay Peninsula. 172. DIPSADOMORPHUS DENDROPHILUS (Boie). Dipsadomorphus dendrophilus, Blgr. Cat. Snakes, iii. p. 70. " Ular Puntee " of the Malays of Kedah. Localities. Var. B : Eecorded from Kedah, Penang, Pangkor (Dindings), Ipoh district of Perak (R. Hanitsch, Rep. Raffles Libr. & Mus. 1897, p. 10), and Singapore. Habits. A specimen I obtained from Kudat, British North Borneo, 1224 mm. in length, looked very distended, and we found in its stomach a recently swallowed Tree-Snake (Ghrysopelea ornata), which was rather longer than itself; the swallowed prey was, as |