11. MACROPISXnODON. 265 



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

 keeled. Veutrals 157 ; anal divided : subcaudals 100. Olive above, 

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

 u|)per 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. $ (V. 167; C. 100). Zamboauga. II.M.S. ' Challenger.' 



(Type.) 



11. MACROPISTHODON. 



Tropidonotus, ■p&vt., Schlctj. Phys. Serp. ii. p. 297 (1837); GihUh. 



liept. Brit. Ind. p. 2o8 (18G4) ; Bouleng. Faun. Ltd., Bept. p. .'341 



(1890). 

 Amphiesma, part., Dum. Sf Bihr. Erp. Gin. vii. p. 724 (1854) ; Jan, 



Arch. Ziiul. A)i(it. I'/n/s. iii. 1865, p. 2.32. 

 Xenodon, part., Dum. i.y Bibr. t. c. p. 75.J ; Jan, op. cit. ii. 186-3, 



p. 310 ; Gilnth. Cat. Col. Sn. p. 53 (1858). 



Maxillary teeth 12 to 20, followed after an interspace by a pair 

 of extremely large fangs ; mandibular teeth subcqual. 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 moderate ; subcaudals in two rows. Hypapophyses 

 developed throughout the vertebral column. 



East Indies. 



Fig. 17. 



Maxillary of Macropisihodoti Jlaiicejjs. 



Si/nojjsis of the S2J€cies. 



Maxillary teeth 18 to 20 + 2 ; scales in 19 



rows ; ventrals i2(J~13s ; subcaudals 



49-00 ; black, or with black cross 



bands 1. Jlavicfps, p. 20G. 



Maxillary teeth 12 to 15 + 2; scales in 19 



rows ; ventrals 128-138 ; subcaudals 



42-58 ; a dark vertebral stripe 2. rhodomclas, p. 2(50. 



Maxillary teeth 12 or 13 + 2 ; scales in 23 



to 27 rows; ventrals 144-1 GU; sub- 

 caudals 35-50 ; green or greenish .... 3. plumhicolor, p. 207. 



