A MONOGRAPH OF THE SEA-SNAKES (HYDROPHIIN 2). 237 
from the Indian Ocean, and another specimen also in the British 
Museum is Kempe’s from India, the exact locality not known. This 
form is very comparable to var. jayakari of viperina and var. phipsoni 
of cyanocincta. 
(6) Ornamented with many ocelli of very variable size and capricious distri- 
bution, the largest occurring for the most part dorsally. This form is 
ooly known from Australia, and has been confused with ocellata 
(Gunther) which latter is very similar in coloration, but I consider it a 
very distinct species. It deserves the name pseudocellata. J think it 
very analogous to the variety elegans of cyanocincta. 
DISTIRA OCELLATA (Gray). 
Hydrophis ocellata, Gray, Cat., p. 53, in part. 
ue Giinther , Rept. Brit. Inds t8OA p13 75e p aeekvi, oe. I pant: 
ipcaiea ornata, Boulgr. in Blanford, Fauna Brit. Ind. Rept. and Buroan. 1890, 
p. 411, in part. 
,,  Dboulgr. Cat., 1896, iii, p. 290, in part. 
Fig. 53.—Distira ocellata. After Giinther’s fizure of the type specimen, Rept. Brit. Ind., pl. xxv, fig. P. 
I cannot accept in toto the view held by Mr. Boulenger in uniting oce/lata (Gray) 
with ornata (Gray). So far as the type-specimen of ocellata is concerned I find the 
rows of costals much greater than in the other specimens so named, and they exceed 
by 12 the outside limits given by my series of 36 examples of ornata at midbody. 
The difference is enormous. My view regarding the type-specimen of ocellata 
supports that previously held by Gray and Gunther. 
The other specimens referred by Gray and Gunther to ocellata I consider distinct, 
and I agree with Mr. Boulenger that they are but colour varieties of ornata (Gray). 
The species ocellata thus rests on a single specimen which is in the British 
Museum. 
Description.—The neck is about half the extreme body depth. 
Rostral,—the portion visible above is rather more than half the suture between 
the nasals. Prefrontals,—touch the second labial. Postoculars,—two. Tem- 
porals,—two, ill-developed, superposed scales anteriorly, the lower reaching the 
labial border. Labials,—six; (if the lower temporal is not considered as such) the 
third and fourth touching the eye. Infralabials,—five, the fourth largest, and in 
contact with the fifth, and one smal! scale behind; the suture between the first pair 
subequal to that between the anterior sublinguals Marginals,—none. Sub- 
