358 Records of the Indian Museum. [VoL. XII, 
well elevated and its margin in lateral view is a little uneven; the 
fourth is distinct and ends abruptly. The first lateral carinae are 
not parallel, but converge anteriorly. Each is composed of a num- 
ber of short ridges ending anteriorly in denticles. The foremost 
ridge is short and terminates in a comparatively large tooth placed 
a little behind the first of those in the median line. The small 
teeth or denticles on the two ridges posterior to it are also well 
formed, while the remainder are minute and can only be seen with 
difficulty. At the posterior end of the carapace there are a few 
additional short ridges, some bearing denticles, between the median 
and the first lateral carinae. ‘The second lateral carina is also 

Fic. 1.—Pontophilus incisus, sp. nov. 
a. Antennule. c. First peraeopod. 
b. Antennal scale. d. Second peraeopod. 
composed of interrupted ridges, the foremost ending in a stout 
hepatic tooth situated in advance of the primary median tooth. 
The ridge flanking the hepatic tooth is comparatively long and is 
succeeded by another, also of considerable length, which ends in a 
conspicuous tooth; the remaining ridges, three or four in number, 
are short and each may or may not bear a small denticle. There 
are sharp orbital and branchiostegal spines, the latter being the 
longer and extending beyond the level of the rostral apex. Except 
for the ridges, the entire carapace is covered with a fine pubescence 
and also, in many cases, bears several upstanding tufts of long 
eetae: 
