11. MACROPIsTHODON. 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. 2 (V. 157; C. 100). Zamboanga. H.M.S. ‘ Challenger,’ 
(Type.) 
11. MACROPISTHODON. 
Tropidonotus, , Schleg. Phys. Serp. ii. p. 297 (1837); Giinth. 
a ies nd. p. 258 (1864) ; Bouleng. Faun. Ind., Rept. p. 341 
Amphiesma, part., Dum. § Bibr. Erp. Gén. vii. p. 724 (1864); J 
Zoot. Anat. Phys. ii. 1865, . 282. atc 
Xenodon, part., Dum. § Bibr. t. ¢. P 753; Jan, op. cit. ii. 1863, 
p. 316; Giinth. Cat. Col. Sn. 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 moderate; subcaudals in two rows. Hypapophyses 
developed throughout the vertebral column. 
East Indies. 
Fig. 17. 
: . 
} Maxillary of Macropisthodon flaviceps, 
4 Synopsis of the Species, 
. Maxillary teeth 18 to 2042; scales in 19 
rows; ventrals 120-138; subcaudals 
49-60; black, or with black cross 
DOMES fet Vo vecmatsdeececessccce ss 1. flaviceps, p. 266. 
Maxillary teeth 12 to 1542; scales in 19 
rows; ventrals 128-138; subcaudals 
42-58 ; a dark vertebral stripe........ 2. rhodomelas, p. 266. 
Maxillary teeth 12 or 1342; scales in 23 
to 27 rows; ventrals 144-160; su 
caudals 35-50; green or greenish .. 
3. plumbicolor, p. 267, 
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