NEW CRUSTACEA. 97 



biflagellate, the flagella short, the inner ramus being 

 about half the length of the outer. The antennae are 

 provided with a small basal scale, the external spine of 

 which reaches to the middle of the last joint of the 

 peduncle, while the laminate portion of the scale falls 

 short of the external spine. The external maxillipeds 

 are pediform, elongate and furnished with extremely long 

 hairs. The mandibular palpus bears simple hairs on its 

 inner, and stiff bristles on its outer margin. The pereio- 

 poda are provided with small exopodites. The first pair 

 (only the left present in the specimen) are much the 

 larger, and recall strongly the corresponding appendage 

 in the Crangonids, but the occludent margin is more 

 oblique than in most of the genera of that group. The 

 meros is about twice as long as the ischium, and both 

 these joints have the external margin acute. The short 

 carpus is approximately an equilateral triangle in outline. 

 The hand is flattened, the propodus being twice as long as 

 broad, and externally with an acute edge. A long acute 

 'thumb' directed obliquely forward, at about the middle 

 of the inner margin of the propodus, limits the occludent 

 margin of the palm. This margin is acute and is pro- 

 vided with one large and several smaller teeth, the dis- 

 tribution of which is shown in the figure. The dactylus 

 is bent, proximally, at a right angle, the distal portion 

 being regularly arcuate and the tip acute. Its margins 

 are sharp and the outer one is provided with a fringe of 

 long hairs. The second pair of feet are the shortest, the 

 carpus is simple, without annulations, and the dactylus 

 is flattened and covered with a pul^escence of long hairs. 

 The remaining pereiopoda are slender, pediform and ter- 

 minated by acute, slightly curved dactyli. The total 

 length from the tip of the rostrum to the end of the 

 telsoQ is 26 mm. 



