128 COLUBEID/E. 



Perak, from 3000 to 3400 feet altitude, and from Jalor in the 

 Siamese Malay [States, where it \Yas observed to feed on frog 

 spawn. 



Of fierce habits, according to Cantor. 



132. Tropidonotiis niaculatus. 



Edeling, Nederl. Tijdschr. Dierk. ii, p. 203 (18G4) ; Bouleng-. Cat. 

 Su.i, p. 200(1893). 



Form slender. Eye very large. Eostral broader than deep ; 

 internasals broadly truncate in front, as long as the praefrontals ; 

 frontal once and a half as long as broad, as long as its distance 

 from the end of the snout, shorter than the parietals ; loreal as 

 deep as long, or deeper; 1 prse- and 3 postoculars; temporals 

 2 4- 3 ; 9 upper labials, fourth, iifth, and sixth entering the eye ; 

 5 lower labials in contact with the anterior chin-shields, which ai-e 

 shorter than the posterior. 8cales all strongly keeled, in 19 rows. 

 A'entrals 144-156 ; anal divided ; subcaudals 95-113. Olive 

 above, with four longitudinal series of small square black spots 

 and two of yellowish ones; upper labials yellowish, with black 

 sutures ; lower parts yellowish, the shields edged with black. 



Total length 810 m'illim. ; tail 270. 



Malay Peninsula (Malacca), Sumatra, Borneo. 



Genus MACROPISTHODON. 



Bouleng. Cat. Sii. i, p. 256 (1893). 



Maxillary teeth 12 to 20, follo^^■ed after an interspace by a pair 

 of extremely large fangs ; mandibular teeth subequal. Head 

 distinct from neck ; eye moderate or large, with round pupil. 

 Body stout ; scales strongly keeled, in 10 (to 27) rows, with apical 

 pits *; ventrals rounded. Tail moderate ; subcaudals in two rows. 



South-Eastern Asia. 



Two species in the Malay Peninsula : — 



Maxillary teeth 18 to 20 + 2 ; usually 8 upper 



labials' M.Jiaviceps, p. 128. 



Maxillary teeth 12 to 15 + 2 ; usually 7 upper 



labials ^I' rhodomelm, p. 129. 



133. Macropisthodon flaviceps. 



Amphiesmajlavivcjjs, Duui. & Bibr. Erp. (len, vii, p. 738 (1854). 

 Tropidonotus leucomelas, (Uiuth. Bept. Brit. Ind. p. 271, pi. xxii, 



fig. I (1864). 

 Macropisthodon Jlaviceps, Bouleng. Cat. Sn. i, p. 260 (1893). 



Maxillaiy teeth 18 to 20 + 2. Eostral twice as broad as deep ; 

 internasals shorter than the pra;frontals ; frontal a little longer 



