GAMMARIDEA. 891 



articulis parce oblongis, setis totis brevissimis. Pedes Imi parvi, manu 

 oblongd, supra rectiusculd, apice obliqud, basi parce angustiore. Pedes 

 2di validiusculi, manu vix duplo longiore quam lma et forma simili, 

 infra parce emarginatd, palmd oblique transversa, hirsutd, digito brevi; 

 carpo inter manum articulumque Stium producto. Pedes 4 ultirni 

 subcequi, 5tis paulo brevioribus, setis paucis brevissimis, articido lmo 

 fere rotundato, margine postieo obsolete crenulato. Maxillipedes arti- 

 culo penultimo angusto. 



Female? — Superior antennae a little shorter than the inferior, flagellum 

 six to eight-jointed. Inferior pair about one-third as long as body, 

 flagellum nine to ten-jointed, joints little oblong, setae all very short. 

 Hand of first pair of feet small, oblong, a little smaller at base, 

 oblique at apex. Hand of second pair of same form, and not twice 

 as long, inferior margin slightly emarginate, palm oblique trans- 

 verse, hirsute, finger short. Last four feet nearly equal, fifth pair a 

 little shorter, setae few, very short, first joint nearly orbicular, poste- 

 rior margin slightly crenulate. Maxillipeds with the penult joint 

 narrow. 



Plate 60, fig. 6 a, animal, enlarged; b, mandible.; c, first maxillae; 

 d, maxilla of second pair ; e, maxillipeds. 



From shallow pools of water along shores of Port Jackson, New 

 South Wales. Collected, December 25, 1839. 



Length, four lines. Eye a little oblong. Base of superior antennae 

 two-thirds as long as base of inferior, and last two joints of base of 

 inferior subequal. Joints of flagellum of the superior pair very dis- 

 tinct, somewhat moniliform ; less distinct in inferior pair. The hand 

 of second pair has a small prominence on the inferior margin near 

 middle, just along side of the emargination, which is hirsute like the 

 oblique apical margin. The finger is curved and short, and shuts 

 close against the oblique apical margin. The third and fourth pairs 

 of legs are nearly equal ; the following three pairs have a few short 

 setae on margins of third joint, and also, at apex of fourth and fifth 

 joints, and on inner margin of fifth ; claw curved, with inner seta, as 

 usual. The first pair of stylets extends back beyond apex of second. 



