182 COLUBRID®. 
a. Parietal not in contact with the lower postocular; sub- 
‘eaudals 102-131. : 
Rostral not twice as broad as deep...... 4. sumichrasti, p. 183. 
Rostral twice as broad as deep ........ 5. collaris, p. 184. 
b. Parietal in contact with both postoculars. 
Subcaudals 89-145 ...............04. 6. geminatus, p. 185. 
Babcaudals 47-76 ©). Foo sea aces 7. subpunctatus, p. 186. 
2. 7 or 8 upper labials; subcaudals 
O-TOES Fisin's 5.4 a mite Lielerdig-s Niece 8. sagittarius, p. 187. 
B. Portion of rostral visible from above measuring two fifths its 
distance from the frontal. 
9 or 10 upper labials ; subcaudals 73-75. 9. bistrigatus, p. 188. 
8 or 9 upper labials ; subcaudals more than 
BL ae Sent ha Mi pet ped A bah r 10. annulatus, p. 189. 
1. Polyodontophis rhodogaster. 
rl dart he rhodogaster, Schleg. Phys. Serp. ii. p. 193 (1837). 
Enicognathus rhodogaster, part., Dum. § Bibr. vii. p: 332, pr Ixxx, 
fig. 2 (1854) ; Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 278, and 
mE Sort 16, pl. iii. fig. 2 (1866); Boettg. Abh. Senck, Ges, xi. 
p. 8. 
A ae rhodogaster, Bouleng. Faun. Ind., Rept. p. 302 
Rostral broader than deep, just visible from above; suture 
_ between the internasals shorter than that between the preefrontals ; 
frontal longer than its distance from the end of the snout, con- 
iderably shorter than the parietals; loreal deeper than long; one 
preocular; two postoculars, both in contact with the parietal ; 
temporals 1 + 2; eight upper labials, fourth and fifth entering the 
eye; four lower labials in contact with the anterior chin-shields, 
which are as long as or alittle shorter than the posterior. Scales in 
17 rows. Ventrals 175-188; anal divided; subcaudals 77-84. 
) Pale brown above, with a darker vertebral stripe, three scales wide, 
edged on each side by a black line; a dark brown streak along 
2 each side, on the second row of scales ; upper surface of head dark 
4 brown, with a yellowish spot on the outer side of the parietal 
shields; upper lips yellowish white, with a few black dots, and 
edged with black above; throat and lower surface of neck yellowish 
white, dotted with black ; belly and lower surface of tail bright 
pink in the middle, yellow on the sides ; a series of black dots may 
be present on each side of the belly. 
Total length 650 millim. ; tail 170. 
Madagascar. 
a-c. 3 (V. 188; 0.77), 9 Madagascar, 
(V. 186; C. 73), & yg. 
(V.176; ©, 84). F 
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