11. MACEOPTSTHODON. 265 



■which are shorter than the posterior. Scales in 17 rows, all strongly 

 keeled. Ventrals 157 ; anal divided ; subcaudals 100. Olive above, 

 with black spots and two series of yellowish black-edged spots ; 

 upper lip yellowish ; lower parts yellowish, with black spots, which 

 become very numerous on the posterior two thirds of the body and 

 on the tail. 



Total length 900 millim. ; tail 270. 



Philippine Islands. 



a. 5 (V. 157 ; 0. 100). Zamboauga. H.M.S. ' Challenger.' 



(Type.) 



11. MACROPISTHODON. 



Tropidonotus, part., Schleq. Phys. Serp. ii. p. 297 (1837) ; Giinth. 



Rept. Brit. Ind. p. 258 (1864) : Boulerw. Faun. Ind., Beat. p. 341 



(1890). 

 Amphiesma, part., Bum. ^ Bihr. Erp. Gin. vii. p. 724 (1854) ; Jan, 



Arch. Zool. Anat. Phys. iii. 1865, p. 232. 

 Xenodou, part., Dum. |- Bibr. t. c. p. 763 ; Jan, op. cit. ii. 1863, 



p. 316 ; Giinth. Cat. Col. 8n. p. 53 (1858). 



Maxillary teeth 12 to 20, followed 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 19 to 27 rows, with apical pits ; ventrals 

 rounded. Tail modeiate ; subcaudals in two rows. Hypapophyses 

 developed throughout the vertebral column. 



East Indies. 



Fis. 17. 



Maxillary of Macropisthodon flaviceps. 



Synopsis of the Species. 



Maxillary teeth 18 to 20+2 ; scales in 19 



rows ; ventrals 120-138 ; subcaudals 



49-60 ; black, or with black cross 



bands 1- flaviceps, p. 266. 



Maxillary teeth 12 to 15 + 2; scales in 19 



rows ; ventrals 128-138 ; subcaudals 



42-58 ; a dark vertebral stripe 2. rhodomelas, p. 266. 



Maxillary teeth 12 or 13+2 ; scales in 23 



to 27 rows; ventrals 144-160; sub- 

 caudals 35-50 ; green or greenish .... 3. plumbicolor, p. 267. 



