388 COLUBRID. 
Total length 800 millim.; tail 315. 
Madagascar. 
a. o (V. 146; C. 119). 8.E. Betsileo. Mr. T. Waters [0.]. 
b. 2 (V. 148; 0.129). Madagascar. Christiania Museum.. 
e, od (V. 146; C. 142). Madagascar. 
138. ALLUAUDINA. 
Alluaudina, Mocquard, CR. Soc, Philom. 1894, no. 17, p. 9. 
Mandibular teeth small and equal. Head very distinct from 
neck; eye moderate, with vertically subelliptic pupil; nasal 
indistinctly divided. Body rounded ; scales keeled, without apical 
pits, in 25 rows; ventrals rounded, Tail moderate; subcaudals 
single. 
Madagascar. 
1. Alluaudina bellyi. 
Alluaudina bellyi, Mocquard, J. ¢. 
Head broad, much depressed. Rostral twice as broad as deep, 
not extending to the upper surface of the snout; internasals very 
short ; prefrontals very large, as long as broad; frontal as broad as. 
long, shorter than its distance from the end of the snout, shorter 
than the parietals; supraocular small; loreal a little longer than 
deep; two pre- and three postoculars; temporals scale-like,. 
keeled ; eight upper labials, third and fourth entering the eye ; four 
or five lower labials in contact with the anterior chin-shields. Scales 
rugose and strongly keeled, in 25 rows. Ventrals 161; anal entire; 
subeaudals 68. Purplish brown above, with a lateral series of 
_ darker spots along the flanks; lower parts greyish white, with 
square black spots, partly confluent and disposed irregularly. 
Total length 312 millim.; tail 73. 
Ambre Mt., Saccaranii Valley, Madagascar. 
139. ETEIRODIPSAS. 
Dipeas, part, Schley. Phys. Serp ii. p. 357 (1887); Dum. § Bibr. 
‘p. Gén, vii. p. 1133 (1854). 
Eteirodipsas, part., Jan, Elenco sist, Ofid. p. 105 (1868). 
Maxillary teeth 14 to 16, equal, followed, after an interspace, by 
a pair of enlarged grooved fangs ; anterior mandibular teeth longest. 
Head distinct from neck; eye moderate, with vertical pupil, 
separated from the labials by suboculars, Body cylindrical ; scales. 
smooth, with apical pits, in 25 to 29 rows; ventrals rounded, Tail 
moderate; subcaudals in two rows. Hypapophyses developed 
throughout the vertebral column. 
Madagascar. 
