586 CRUSTACEA. 



Pal^emon exilimanus. 



Rostrum lanceolatum, apice hrevi deflexum, supra paido arcuatum et 

 Q-dentatum, infra K>-serratum, squamam antennalem non superans. 

 Flagella duo antennarum intemarum parce conjuncta. Pedes antici 

 gracillimi, manu plus duplo breviore quam carpus; 2di non crassiores, 

 nudi, manu duplo longiore, carpo dimidio longiore quam manus, digitis 

 dimidio manus paulo brevioribus. Pedes duo postici tenuissimi, pror- 

 sum porrecti apicem rostri superantes. 



Beak lanceolate, somewhat arcuate above and six-dentate, at tips for a 

 short distance deflexed, below three-dentate, not longer than basal 

 scale of outer antennse. Two flagella of inner antennse united for 

 a very short distance. Anterior feet very slender, hand not naif 

 as long as carpus ; second pair not stouter, naked, hand twice as 

 long, carpus once and a half the length of the hand, fingers hardly 

 half as long as the hand. Posterior feet very slender, when thrown 

 forward, extending beyond the beak. 



Plate 38, fig. 8, cephalo thorax, enlarged two diameters. 



Feejee Islands, Pacific Ocean. 



Length, one and a half inches. Teeth of upper margin of beak 

 nearly equidistant along the margin ; beak a little shorter than an- 

 tennary scale. Hand of first pair of feet laxly pubescent about the 

 fingers, as stout as hand of second pair though half shorter, and 

 neither stouter than the carpus. Outer maxillipeds of moderate 

 length, reaching somewhat beyond the base of the outer antennse. 



Pal^mon squilla, Fabr. 

 Plate 38, fig. 9, cephalothorax, enlarged two diameters. 

 Madeira. 

 This species is closely related to the P. squilla, if not identical with 



