A MONOGRAPH OF THE SBHA-SNAKES (HYDROPHIINA). 227 
bright yellow ventrally. From 42 to 62 dark, well-deined greenish-black bands 
surround the body, which are from half to two-thirds the breadth of the interspaces 
at midcosta, and preserve their width throughout, excepting vertebrally where they 
are expanded. ‘They are not joined ventrally in the anterior part of the body. Head 
distinctively marked with a curved black moustache on the upper lip, an occipito- 
nuchal narrow streak to behind the gape, and some black mottling on the crown. 
A short lateral black band in the neck just behind the occipito-nuchal band. 
Habitat. From the Gangetic Delta to the Malay Archipelago. 
DISTIRA LAPEMOIDES (Gray). 
Aturia lapemoides, Gray, Cat., 1849, p. 46. 
Hydrophis lapemoides, Grinther, Rept. Brit. Ind., 1864, p. 375. 
holdsworthii, Giinther in Ann. and Mag. Nat. Hist., 1872, p. 33. 
stewartii Anderson in Proc. Zool. Soc. Lond., 1872, p. 399. 
Fayrer, Thanatoph. Ind., 1874, p. Xxiv. 
A a Ewart, Pots. Snakes Ind., 1878, p. 49, pl. 18, I. 
Distira lapemidoides, Boulgr. in Blanford, Fauna Ind. Rept. and Batrach., 1890, 
( A2e 
- a Boulgr. Cat., 1896, iii, p. 297. 
? Hydrophis hybridus, Schlegel, Abbild., 1844, p. 115, and pl. xxxvii. 
2 * Jian,elicon. Gén., 41, pl.v, fig 
Boulgr, Cat., 1896, iii, p. 274. 
>) 
33 
x” ”) 
Fig. 42 —Distira hybrida. After Jan, Icon. Gén., 41, pl. v. fig tf. 
hybridus (Schlegel). This form is only known from the single example described, 
and figured by Schlegel in 1844, and subsequently by Jan in 1872. Not having 
seen this I am unable to pronounce upon the posterior maxillary teeth, but after an 
examination of the figures referred to above, and a consideration of the detailed 
description, the specimen appears to me to agree with Japemoides (Gray) as Mr. 
Boulenger records the costals as juxtaposed, otherwise it would completely agree 
with cyanocincta (Daudin). 
This form is separated from cyanocincta in Mr. Boulenger’s key on one point 
only, viz., the juxtaposition of the posterior costals. In all other characters it appears 
by his own showing they agree, and I can find no other difference between the two 
after a careful comparison. It is very dubious whether this single peculiarity justifies 
