MACBOCALAMUS. 



153 



with black ; upper labials yellowish, with a few small black spots ; 

 lower parts uniform yellowish white. 



Total length 430 millim. ; tail 170, 



Malay Peninsula, Sumatra, Borneo, Has been obtained in 

 Peuaus: and Ivelantan. 



Genus MACROCALAMUS. 

 GUiith. Kept. Brit. Ind. p. 198 (1864). 



Maxillary teeth about 10, subequal; mandibular teeth subequal. 

 Head not distinct from neck ; eye small, with round pupil ; 

 nostril pierced between a nasal and the first upper labial ; no 

 iuternasals ; loreal present or absenr. Body cylindrical ; scales 

 smooth, without apical pits, in 15 I'ows ; ventrals rounded. Tail 

 short ; subcaudals in two rows. 



A single species. 



165. Macrocalamus lateralis. 



Giiutb. op. cit. p. 199, pi. xviii, fig-. D ; Bouleng-. Cat. Sn. ii, 

 p. 327 (1894) ; S. Flower, i\ Z. S. 1899, p. 673. 



liostral deeper than broad, 

 extending to the upper surface 

 of the head, separating the 

 nasals ; frontal longer than 

 broad, a little longer than its 

 distance from the end of the 

 snout, a little shorter than the 

 parietals ; loreal usually ])re- 

 sent ; one pra?- and one post- 

 ocular ; temporals 1 + 2 ; 8 

 upper labials, fourth and fifth 

 entering the eye ; 4 lower 

 labials in contact with the 

 anterior chin-shields ; pos- 

 terior chin - shields small. 

 Scales in 15 rows. Ventrals 

 110-127; anal entire; sub- 

 caudals 19-27. liich dark 

 reddish bro\^n above ; below, 



head and neck yello^w, remainder bright coral-red, with a black 



lateral line ; labials and sides of neck 3'ellow. 

 Total length 300 millim. ; tail 32. 

 The locality of the type specimen is unknown. Capt. Flower 



and Mr. A. L. Butler obtained specimens in the Larut Hills, Perak, 



at an elevation of 3500 to 4500 feet. 



Fisr. 47. — Head of Macrocalamus lateralis. 



