190 
AOEOOHOBDIDAE. 
Chersydrus. 
40. Chersydrus granulatus Schneider. 
Celebes: Macassar, 1 spec. 
Hydrophidae. 
Platurus. 
41. Platurus scutatus Laurenti. 
Flores: in the sea near Sikka, 1 spec. 
Elapidae. 
Maps. 
42. Flaps furcatus Schneider. 
Java: Buitenzorg, 2 spec. 
Tjibodas, 1 spec. 
43. Elaps sumatranus n. sp. 
Sumatra: Kaju tanam, 1 spec. 
Upper labials six, vertical six-sided, somewhat more long than 
broad. Temporals 1 + 1 ? the posterior longer and narrower than the 
anterior. Ventrals 225. This species bears some resemblance to E. 
hivirgatus Boie, as regards the general colour of the back and that ot 
the belly. In coloration, however, the difference between the two species 
is very important. Our only specimen has the tail mutilated just behind 
the anal shield, so I am unable to give any information as to the 
shields or coloration of the tail. In the beginning the belly is of a red 
colour uniform without dark spots, the 73fd ventral is the first that 
assumes a black colour, though only on its left half. Again 30 ventrals 
are uniform red, the Sl^t is quite dark, followed by alternately black 
and red cross bands, the latter colour occupying 4 or 5 ventrals, whilst 
the former colour occupies half a ventral, one, one and a half, or two, 
in one instance even three ventrals. The upper parts are of a violet 
colour with a glossy shine and with three dark longitudinal bands , one 
occupying the three series of scales on the middle of the back, and 
one on each side occupying the three outer series of scales. Upper 
parts of the head of a dark colour, except the posterior frontals, which 
are somewhat lighter than the rest of the shields. 
