conorniiD.K. 249 



low, and densoly hair}-. Seta) of third ;ind fourth p;iii-s of percio- 

 poda fow, nearly as k)ng as joint. 

 " Length of hodv 8 Hncs. 



" Hab. llio Janeiro, Brazil." — Dana. 



The description of this species closely resembles that of ^. Gawli- 

 chaud'd of Edwards, the chief distinction being the length of the 

 flagellum of the inferior antenuse. 



32. Amphithoe filicornis. (Plate XLIII. fig. 4.) 

 Aiiiphithoe tilicomis, Dana, U. S. Ejcplor. Expcd, p. 944. pi. 65. f. 1. 



" Female. — Antennte hardly shorter than the body, setae few and vciy 

 short, the flageUa very slender : superior pair- a little the longer*, 

 llagoUum more than three times as long as the base, ai-ticuli 

 oblong, seta) on under apex of every other articulus a little longer 

 than on the others : interior pair having the flagellum twice as 

 long as the base. Gnathopoda subcqual and similar : second pair 

 having the propodos a little the larger and of moderate size ; 

 margins sparingly arcuate and very hairy, especially below ; palm 

 obli(]iicly truncate, harcUy excavate, inferior angle subacute ; dac- 

 tylos short ; carpus sparingly oblong ; the part below, between the 

 meros and propodos, rather broad and densely liairy ; meros tri- 

 angular at inferior apex. Pereiopoda pilose, setae rather long ; 

 sixth and seventh paii's subequal. 



" Hah. Eio Janeiro." — Dana. 



33. Amphithoe penicillata. 



Amphithoe penicillata, A. Costa, Rend, del/a Reale Accad. delle Scicnze 

 di NapoU, 1853, p. l74. 



•' Superior antennas longer than the body. Inferior antennae much 

 shorter than the superior, the peduncle scarcely longer than the 

 peduncle of the superior, (jnathopoda robust ; second pair a little 

 the larger, having the propodos oblong, with the upper (hstnl 

 margin produced be_) ond the base of the dactylos, and furnished 

 with bi-ush-like cilia along the concave palm (in male) — resembhng 

 the first pair (in female). Pleopoda of nearly equal length. 



" Length 4 lines. 



" ITah. Coast of Naples."— Co,s<a. 



34. Amphithoe crassicornis. 



Ampliithoii crassicornis, A. Costa, Rend, dilla Reale Arrad. ddle 

 Siieiize di XapoU, 1853, p. 1 71. 



" Antenna-' long, stout, subrrjual, a little h)ngcr tluiii half the Iciiglh 



