972 



CRUSTACEA. 



fourth pairs of legs equal, first joint nearly round; fifth pair scarcely 

 longer than fourth; sixth and seventh long and subequal, the 

 seventh somewhat the longest, first joint oblong, setae few. 



Plate 67, fig. 1 a, animal, enlarged ; b, part of flagellum of superior 

 pair; c, ibid, of inferior pair; d, side view of head; e, extremity of 

 third or fourth pair of legs; /, caudal stylet of last pair; g, leg of 

 second pair ; h, mandible. 



Sooloo Archipelago ; dredged up in six and a half fathoms, Feb- 

 ruary 2, 1842. 



This species has some resemblance to the D. ernissitius, from the 

 same locality. But they differ in the four anterior legs, the two pairs 

 of hands being peculiar in form, and nearly alike in size. The 

 finger of the first pair of legs is about as long as the fifth joint, and 

 this joint is but little longer than broad. The superior antennae are 

 about three-fifths as long as the body, and the inferior are of the same 

 length, though having a longer base. The third and fourth pairs of 

 legs are peculiar in having the basal joint nearly circular, and broader 

 than the same joint in the following three pairs, which is oblong. 

 The first pair of stylets extends beyond the apex of the second, and 

 the second beyond the third. The eye projects nearly half the length 

 of the first joint of the superior antennae. The appendage to the 

 superior antennae was overlooked (if one exists), when the drawings 

 were made in the Sooloo Sea ; the specimens are now mutilated in 

 this part. 



Amphiihoe peculans (by mistake for speculans), Dana, Proc. Amer. Acad. Sci., u. 213. 

 DERCOTHOE ? HIRSUTICORNIS. 



Feminae: — Epimerce sat magnce. Caput lateribus anticd valde pro- 

 ductum. Antennae, infra bene setosce; lrnce dimidio corporis toeviores, 

 flagello basin longitudine fere cequante, artwulo basis prinxo vix bre^ 

 viore quam tertius, appendice S-articulatd ; 2dce paulo breviores, arfa 

 cutis basalibus quatuor subcequis, 4 to longiore, \vno breviore, flagello 

 breviore quam basis. Pedes 4 antici parvuli, iti Stiis crassiores; 6 

 postici sensim increscentes, setis brevibus, sparsis. 



