174 Journal of the Asiatic Soctety of Bengal. | July, 1905. 
erey. The markings on the side of the head and on the neck are, 
however, quite distinct, and the individual is otherwise normal. 
We have in the Museum a similar specimen from Borneo. 
DENDROPHIS pictus (Gmel.) © 
A specimen has been sent by Mr. Rogers from Henry Law- 
rence Island, Andamans. ‘he species appears to be common all 
over the Andamans and Nicobars. Some of the Andaman speci- 
mens, are very dark in colour, but this character does not seem 
to be constant. 
TROPIDONOTUS PISCATOR (Schneid. ) 
We have lately received a specimen from the South Anda- 
mans, while we had already a number from several localities in the 
archipelago. I have not been able to find any record of the 
occurrence of this common Indian species in the Nicobars. 
TROPIDONOTUS NICOBARENSIS, Scl. 
T. nicobaricus Sclater, J.A.S.B., UX (2), 1891, pp. 231, 250. 
T. nicobarensis, ¢d., zbd, p. 241. 
T. nicobariensis, Boulenger, Cat. Snakes; p. 192. 
The type of this species stiJl remains unique. I have examin- 
ed it very carefully, dissecting out the maxillary on one side, and 
have no doubt that Mr. Selater was right as to its generic identifica- 
tion. The maxillary teeth, 24 in number, increase shghtly from 
before backwards, and show no signs of being stunted posteriorly ; 
but the division of the anal plate appears to me to have been trau- 
matic. If the species is identical with Cope’s Prymnomiodon, the 
latter must have been founded on an individual injured or abnormal 
as to its dentition. This seems possible, as the type was otherwise 
deficient. 
}DIPSADOMORPHUS CEYLONENSIS, Gthr. 
Mr. Rogers has presented two specimens from the South 
Andamans. The snakes from Assam and the Andamans identi- 
fied by Mr. Sclater as Dipsas fusca, are young individuals of this 
species. 
DIstiRA ANDAMANICA, Sp. nov. 
Head moderate, hardly separated from the neck ; the greatest 
depth of the latter half that of the body; body deep, strongly 
compressed ; tail short. Rostral much broader than deep; nasals 
shorter than frontal, three times as long as the suture between the 
prefrontals ; frontal not much longer than broad, shorter than dis- 
tance from rostral, much shorter than parietals; one preocular, 
very large; 3 postoculars; no loreal; 2 large, superimposed 
anterior temperals; 7 upper labials, 3rd and 4th entering eye ; 
two pairs of sub-equal chin shields, the posterior pair separated 
