186 
cription, they both show the three black Unes radiating from the 
orbit and the black hne across the hind part of the head. Besides the 
two longitudinal hnes on the flanks these specimens have series of two 
and three black spots lying one above the other, on the sides of the 
neck and also on part of the body. These combinations of spots re- 
sembling those described in the specimen of Elaphis subradiatus from 
Flores confirm my doubt as to the identity of that species. It may 
be noted that the Leyden Museum is in the possession of a young 
specimen of E. radiatus from Borneo resembling in all points the last 
mentioned specimens from Java. 
Coryphodon. 
20. Coryphodon korros Reinwardt. 
Java: Buitenzorg, 3 spec. 
POTAMOPHILAE. 
Tropidonotus. 
21. Tropidonohis vittatus Linné. 
Java: Buitenzorg, 9 spec. 
22. Tropidonotus trianguligerus Schlegel. 
Sumatra: Singkarah, 1 spec. 
„ Kaju tanam, 2 adult and 2 young specimens. 
AmpMesma. 
23. AmpMesma suhminiatum Reinwardt. 
Java: Buitenzorg, 6 spec. 
24. AmpMesma chrysargos Boie. 
Java: Tjibodas, 1 spec. 
Sumatra: Kaju tanam, 3 spec. 
The specimen from Tjibodas differs from the typical specimens in 
having two praeoculars in stead of one, moreover the upper prae- 
ocular on the left side has an incision indicating a division into three 
praeocular shields. 
Lepidognathus no v. gen. ^). 
Head depressed, rostral as high as broad, loreal present, nasals on 
the upper side of the head separated by the anterior frontals. No la- 
bials entering the orbit, but the eye surrounded by a ring of small 
scales. Upper labials 12, resting on a row of very small trigonal scales, 
1) From A£7r/$, (/3oç) = scale, and yvaâoç = w 
