iy4 AMPHirODA NOKMAUA. 



appondngo half .shorter than flap:clhim. Tnfonor antennae ver)- 

 slender, short, base a little shorter than base of superior pair ; 

 flagellum not longer than preceding joint. First pair of gna- 

 thopoda quite small ; propodos subovate, upper margin nearly 

 straight. Second pair of gnathopoda stout ; propodos broad, sub- 

 rectangular, at base a little narrower, at apex nearly straight, 

 truncate, sparsely setulose ; palm not excavate, and defined below 

 by an angle ; carpus transverse, veiy narrow, triang-ular. Fourth 

 and fifth pairs of pereiopoda subequal, the last a little the shorter ; 

 setae rather sparse, and shortish, those on upper margin of joints 

 very minute. Last pair of pleopoda long, extending much beyond 

 the second. 

 " Length 4 lines. 



" Hah. From coral-reefs of Viti Lebu, Feejee Islands." — Dana. 



11. Mcera Fuegiensis. (Plate XXXV. fig. 4.) 

 Gammarus Fuegiensis, Dana, U.S. Explor. Exped. p. 954. pi. 65. f. 8. 



" Female. — Near M. tenella. Superior antennae slender, longer than 

 half the body ; base quite long, longer than flagellum, setose below, 

 second joint much the longest; flagellum sixteen- articulated, 

 articuH oblong ; setae few, not shorter than articuli, and hardly 

 divaricate; secondary appendage four-articulated. Inferior an- 

 tennae shorter than superior ; Base not shorter than base of supe- 

 rior pair, its last two joints subequal ; flagellum five-articulated, 

 but little, if any, longer than preceding joint. Gnathopoda with 

 the propoda quite small, narrow oblong ; the margins nearly 

 parallel, hirsute, obliquely truncate at apex : dactylos of first pair 

 slightly longer than palm ; carpus shorter, and hardly broader 

 than propodos. Last three pairs of pereiopoda very unequal, 

 seventh pair much the longest. Rami of last pair of pleopoda not 

 extending as far back as second or first pair ; fii'st and second with 

 a very long spine at apex of base, which is a little shorter than 

 the rami. 



'' Length 3^ lines. 



" Hah. Feejee Islands." — Dana. 



12. Mcera quadrinianus. (Plate XXXY. fig. 5.) 



Gammarus quadrimanus, Dana, U.S. Explor. Exped. p. 955. pi. 65. f. 9. 



" Slender ; coxae narrow. Superior antennae half as long as the 



body ; base a little longer than the flagellum ; first and second 



joints long, subequal, third verj^ short ; flagellum pubescent ; setae 



longer than articuli, and hardly divaricate ; secondary appendage 



