1916. ] S. Kempe: Notes on Crustacea Decapoda. 367 
long, more than twice the length of the carpus; the chela is a little 
shorter than the carpus. The fingers are a trifle shorter than the 
palm ; they are of equal breadth, without definite cutting margins, 
and each bears at its apex a single stout seta serrated on the inner 
side. 
The third peraeopods reach beyond the end of the first by the 
two ultimate segments. The carpus is one third the length of the 
merus and is a little shorter than the propodus and dactylus com- 
bined. In the fourth pair the propodus is the longest segment, 
nearly a quarter longer than the merus, a trifle longer than the 
carpus, and about 1°7 times the length of the dactylus. 
The abdomen is quite smooth, without trace of sculpture; the 
lower margins of the pleura are rounded. The pleopods resemble 
those of P. lowist. The endopod of the last four pairs in the 
female is greatly reduced and shows no trace of an appendix in- 
terna. In the male the endopod is better developed and in all 
four pairs is provided with a well formed appendix. 
The outer uropod is shorter than the inner and is about three 
times as long as broad; its external margin is without setae, 
except for a few at the distal end. The telson reaches about as 
far as the outer uropod and is not suleate above. It bears two 
pairs of dorso-lateral spinules and the apex is similar to that of 
P, incisus, 
Living specimens were as a rule almost pure white with a nar- 
row transverse brown band on the tail-fan. 
#082:4 Port Blair, Andamans. S. Kemp. 26,4 2, 7-10 mm. 
The type specimens bear the number 9082/r0. 
Pontophilus pilosus, sp. nov. 
(Plate viii, fig. 4.) 
The rostrum is well developed and reaches almost to the end 
of the eyestalks. It is deeply hollowed longitudinally and tapers 
to a narrow rounded apex. On its ventral side there is a deep 
vertical keel, extending downwards between the eyestalks. The 
keel ends abruptly a little behind the apex where it bears a tuft 
of long setae. 
The carapace is everywhere clothed with a fine pubescence, 
which, over the greater part of the surface, is comparatively short, 
but becomes more conspicuous laterally and on the antero-lateral 
portions takes the form of long silky hairs. There are three pro- 
curved teeth in the mid-dorsal line, but no carina. The first two 
of these teeth are placed rather close together in the anterior half 
of the carapace, while the third is in the middle of the posterior 
half. Behind the antennal spine, which reaches almost as far for- 
ward as the rostrum, there are two small teeth placed one behind 
the other in the latitude of the first tooth of the mid-dorsal series. 
Below these there is a stout hepatic tooth which overhangs a deep 
sulcus—the lateral continuation of the transverse post-rostral 
