876 CRUSTACEA. 



2dce dimidii corporis longitudine, sells minutissimis semidiametro 

 artiadorum non longioribus, flagello basin longitudine cequante, ar- 

 ticidis plerumque paulo oblongis, setis semidiametro articulorum vix 

 longioribus. Antenna? lmo3 minutw, basi secundarum quadruplo bre~ 

 mores, flagello 3-5-articulato, Pedes Imi parvuli, manu minutd, 

 oblongd, apice vix latiore quam articulus precedent, apiee recti trun- 

 cate, digito minuto. Pedes 2di validi, manu subovatd, margine infe- 

 riore (palma) arcuato et versus apicem parce concavo, spinulis armato, 

 digito longo, paulo breviore quam manus. Pedes sequentes tenues ; 4 

 proximis suboiquis; 4 ultimis subo3quis ; setis in paribus nivmerosis ar- 

 ticuli 6ti inferis et supemis aiquis, diametro articuli non longioribus. 

 Feminse: — Pedes 2di debiles, manu minutd, elongate obovatd, apice 

 rotundatd, digito laterali, longitudinali, apice extremitatem manus vix 

 attingente. 



Male: — Epimerals rather narrow, fifth slightly narrower than fourth. 

 Inferior antennse scarcely longer than half the body, setee very 

 minute, flagellum as long as base, the joints mostly a little oblong, 

 setae half the diameter of the joints in length. Superior antennae 

 one-fourth the length of base of inferior, the flagellum three to five 

 jointed. First pair of feet small and weak, hand minute, oblong, 

 with the sides parallel, and apex straight truncate, finger minute. 

 Second pair of feet stout, hand subovate, lower margin (palm) a 

 little excavate and spinulous, finger elongate, somewhat shorter than 

 hand. Following feet slender; the next four subequal; last four 

 subequal; fifth pair shorter; setae of the margins of the fifth joint 

 equal. 



Female: — Hand of second pair minute, obovate, oblong, rounded at 

 apex, finger lateral, longitudinal, its apex reaching nearly to extre- 

 mity of hand. 



Plate 59, fig. 4 a, animal, enlarged ; b, more enlarged view of fla- 

 gellum of inferior antennae ; c, hand of second pair of feet ; d, extre- 

 mity of last pair of feet ; e, second pair of feet in female. 



Tongatabu, under sea-weed on beaches. 



Length, half an inch. The body is naked. The hand of the first 

 pair of feet in males is a little shorter than the preceding joint, and 



