gQ2 CRUSTACEA. 



small claw, and the second, third, fourth and fifth joints subequal. 

 Second pair shorter than first, penult joint prominent behind; 

 last joint lamellar, rounded at apex, nearly naked, concave on ante- 

 rior side, and having on this margin towards apex a minute finger. 

 Third pair of feet much longer than fourth ; last three pairs gra- 

 dually increase in length, rather slender, first joint narrow-elliptic, 

 and edged with minute spinules, other joints with very short setae 

 at small intervals on the opposite sides ; feet of seventh pair con- 

 siderably longer than- sixth, very much longer than those of fifth ; 

 the setules of the fifth joint numerous, and not one-third as long on 

 either margin as the diameter of the joint. 

 Male: — Inferior ant-ennae longer than the body; flagellum a little 

 longer than the base, about thirty-jointed. Feet of first pair with 

 a small, narrow hand, the finger minute and acting against the 

 truncate apical margin, and hardly longer than this margin. Feet 

 of second pair having a large ovate hand, lower margin convex 

 entire, and spinulose; finger a little shorter than hand. Carpus 

 minute ; third joint slightly oblong. 



Plate 57, figs. 5 a to /, female, g to m, male. — 5 a, female, enlarged; 

 b, portion of flagellum of inferior antenna ; c, extremity of legs of 

 second pair; d, ibid, of third pair; e, ibid, of fourth pair; /, first pair 

 of caudal stylets. — g, male, enlarged ; h, extremity of leg of first pair ; 

 i, hand of second pair ; h, extremity of leg of third pair ; I, ibid, of 

 fourth pair ; m, third pair of stylets and extremity of abdomen. 



Sandy shores of a small coral island in the Balabac Passage. 



Length, about half an inch. Nearly colourless. The superior 

 antennae are short, with a flagellum shorter, or not longer, than the 

 base, and the whole in both sexes, not reaching to apex of penult joint 

 of base of inferior antennae. The flagellum of the inferior antennae is 

 straight and not very flexible. The last joint of base is one-third 

 longer in females than the preceding, and more than half longer in 

 males. The claw of the legs is slender and nearly straight, excepting 

 in fourth pair, in which it is gibbous below, or has a prominent angle 

 and is stout. The caudal stylets of the first pair have the upper 

 margin of outer branch naked in both sexes, and the inner branch 

 with four or five setules or sets of setules besides the terminal. The 



