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Show 1899.] AND BATRACHIANS EROM EOKIEN. 165 112-121; anal entire; subcaudals 22-28. Brown above, with very small black spots ; a black nuchal blotch or cross-band edged with yellowish; labials yellowish, with blackish edges; rostral yellowish, with a large blafckish spot; ventrals and subcaudals yellowish, dotted and speckled with blackish on the sides. Total length 350 millim.; tail 45. Two specimens, male (V. 112 ; C. 28) and young (V. 121; C. 22). Named after Mr. F. W . Styan, whose collections have so much advanced our knowledge of the fauna of China. The discovery of this species lessens the gap between the genera Plagiopholis and Trirhinopholis, borh established on single species from the Shan States. 15. DlNODON SEPTENTRIONALIS Gthr. Three specimens. Intermediate in the pattern of coloration between the typical form from Assam and Burma and the var. ruhstrati Fischer from Formosa. The pale interspaces between the dark broAvn dorsal spots are very narrow throughout and nowhere form complete annuli. 16. COLUBER PORPHYRACEUS Cantor. Four specimens. Two black lines extend from the eyes to the end of the tail, intersecting the dark cross-bars, which have a tendency to disappear in adult specimens. This species had not been recorded from farther north-east than Yunnan. 17. COLUBER MANDARINUS Cantor. Two specimens. Temporals 2 + 2 or 3; one of the specimens has a single post-ocular, the lower having fused Avith the fourth labial. This most beautifully-marked Snake was known only from Chusan. 18. COLUBER PHYLLOPHIS Blgr. Two specimens. 19. ABLABES MAJOR Gthr. Three specimens. A young specimen has irregular black transverse spots on the nape and anterior part of the back, and traces of an interrupted black lateral streak. 20. CALAMARIA SEPTENTRIONALIS Blgr. A single specimen ($ . V. 174 ; C. 8). 21. BUNGARUS CANDIDUS L. A single specimen, pertaining to the var. multicinctus Blyth. |