GAMMARIDEA. 



867 



of penult joint of base of inferior pair, and its flagellum is nearly half 

 its whole length. The setules of the flagellum of the inferior antennse 

 are hardly one-fourth the diameter of the joints in length. The ten 

 posterior legs are all stout, and the sets of spines are rather crowded; 

 there being five sets on the margin of the fifth joint in the last two 

 pairs; the margin of the joint is strongly serrated to receive the 

 spines. The epimeral of the sixth joint is unusually long, being 

 nearly as large as that of the fifth. 



Krauss mentions that the 0. Sottas, Edwards, is found in South 

 Africa, at Port Natal. The published description of that species is 

 too brief to enable us to identify our species with that. 



Orchestia chilensis ? Edw. 



^Qmmxs-.—Epimerce sat magna, 5tce Uis vix breviores. Antennas 2dw 

 dimidio corporis breviores, basi sat brevi, articulo basis ultimo parce 

 longiore quam precedent, flagello parce longiore quam basis, 19-20- 

 articulato, articulis parce oblongis, setis minutissimis. Pedes \mi Mis 

 breviores et tenuiores, manu apice truncatd, paulo latiore, digito vix 

 longiore quam margo apicalis; 2di manu subspatulatd, digito mar- 

 ginali, longitudinali, apicem vix attingente. Pedes 10 postici setis 

 minutk et sat paucis ornati, setis articuli bti inferis dimidii articuli 

 longitudine, supernis multo brevioribus. Pedes 5ti Qti Imique gra- 

 ciles, 5tis brevioribus, Qtis Imisque acquis, coxis Imorum paido latio- 

 ribus. 



Female ; — Epimerals rather large, fifth but slightly shorter than 

 fourth. Inferior antennae half shorter than the body, base rather 

 short, last joint of base hardly longer than preceding, flagellum a 

 little longer than base, nineteen to twenty-jointed, joints sparingly 

 oblong, setae very minute. Feet of first pair shorter and more slen- 

 der than those of second, hand truncate at apex and here a little 

 broader, finger as long as apical margin. Hand of second pair sub- 

 spatulate, finger marginal, longitudinal, hardly reaching to apex. 

 Feet of ten posterior pairs with the setae minute and rather few • 

 those of the fifth joint on its under surface half as long as width of 

 joint ; those on upper margin much shorter. Legs of fifth, sixth 

 and seventh pairs slender ; fifth considerably shorter than sixth • 



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