260 AMniiroDA normali v. 



2. Dercothoe (Cerapus) speculans. (Plate XLIV. fig. 8.) 



Dercothoe speculans, Dana, U. S. Explor. Exped. p. 971. pi. G7. 



fig. 1. 



" Slender. Coxae small, margin sparsely hairy. Cephalon slightly ob- 

 long. Antennae subequal, longer than half the body, setose below , 

 iliigella not longer than the base, terete, articnli ol)long : second 

 and third joints of snperior pair subequal, the first shorter ; fourth 

 joint of inferior pair longer than the third. First pair of gnatho- 

 poda rather smaller than the second pair ; the propodos and carpus 

 taken together elliptical in outline, and hirsute below ; propodos 

 hardly oblong, slightly shorter than the carpus. Second pair of 

 gnathopoda large ; propodos narrow, subelliptical above, arcuate 

 below, and narrow at apex and base ; palm not excavate, liirsute : 

 carpus subtriangular, slenderly pi'odiiced below the propodos (the 

 process is not appressed to the propodos) ; dactylos rather long. 

 First and second pairs of pereiopoda equal, basa nearly round ; 

 third pair scarcely longer than the second ; fourth and fifth long and 

 subequal, the fifth somewhat the longest, basa oblong, sctaj few. 



" Hah. Sooloo Archipelago ; di'edged in 6^ fathoms, February 2, 

 1842."— Z>awa. 



3. Dercothoe (Cerapus) hirsuticornis. (Plate XLIV. fig. 9.) 



Dercothoe ? hirsuticornis, Dana, U. 8. Explor. Exped. p. 972. pi. 67. 

 fig. 2. 



Female. — Coxae rather large. Cephalon with each side in front 

 produced into a prominence containing the eyes. Antenna with 

 rather long setae arranged along the lower side : superior pair not 

 half as long as the body; fu-st joint of the base not longer than 

 the third ; flagellum nearly as long as the base ; secondary ap- 

 pendage having three articnli : inferior pair shorter, foiu' basal 

 joints subequal (the last longest, the fii'st shortest) ; flagellum 

 shorter than the base. Gnathopoda small. Second pair of pereio- 

 poda stouter than the first ; three posterior pairs gradually in- 

 creasing in length ; setae short, few. 

 " Length 3-4 lines. 



" ffah. From the Island of Enchados, Bay of Rio Janeiro, Brazil ; 

 found among the Serpulas of the shores. "^ — Dana. 



a 



4. Dercothoe (Cerapus) punctatus. (Plate XLIV. fig. 10.) B.M. 



Podocerus punctatus, Spence Bate, Synopsis, i^r.. Ann. Nat. Hist. Feb. 



1857. 



Female. — Eyes round, black. Superior antennae one-third the length 

 of the animal ; first joint of the peduncle stout and abruptly trun- 



