Chilton. — Additions to the New Zealand Crustacea. 77 



does not move when taken out of the water, even if it is touched, and a 

 good deal of extraneous matter is usually found among the short setse which 

 cover the body. 



AMPHIPODA. 

 Genus Nicea. 

 (Cat. Arnphip. Crus. Brit. Mus., p. 51.) 

 Nicea egregia, sp. nov. Plate II., fig. 2. 



Female. — Body much compressed dorsally ; each segment of pereion 

 raised into a crest which projects backwards over the succeeding segment ; 

 first three segments of pleon produced dorsally into crests rather more pro- 

 minent than those on the segments of pereion. Crest of first segment of 

 pleon extending along the dorsal surface of the cephalon and rising abruptly 

 therefrom. Eye moderately large, round. Cephalon produced slightly up- 

 wards at the base of the upper antenna. Upper antenna shorter than the 

 lower, peduncle of three joints nearly equal in length, decreasing slightly in 

 size distally ; flagellum about as long as the peduncle, each joint bearing- 

 long auditory cilia on its under side at the distal end. Peduncle of lower 

 antenna with three joints visible, last two equal in length and considerably 

 longer than the first, flagellum longer than the peduncle, setaB in short tufts 

 at the end of each joint. First and second gnathopoda equal in size and 

 similar in form ; carpus long, sub-triangular, with setse on its inner distal 

 angle ; propodos oblong not broader than carpus, palm slightly oblique, 

 defined by a stout tooth, hairy. Coxaa about as deep as their respective 

 segments. Pereiopoda subequal rather stout ; meros expanded distally and 

 produced anteriorly in the first two, posteriorly in the last three pereiopoda, 

 each pereiopod with dactylos long strong and curved with a short seta 

 arising on the inner margin towards the end. All the pereiopoda nearly free 

 from setse. Of the last three pairs of pleopoda, the first two reach to the 

 same point slightly beyond the extremity of the body ; the rami are about 

 equal in length to the peduncles, and are provided with short strong teeth 

 at the extremity and on their upper margins. Last pair of pleopoda 

 apparently rudimentary, consisting of two joints rounded and perfectly free 

 from setae. Telson concave below, subrectangular, about as broad as long, 

 rounded posteriorly, cleft about half-way down. 



Male. — Differs in having the crests on segments of pereion not so 

 prominent ; first segment not produced so much along the head ; second 

 gnathopod when fully developed chelate, basos long and narrow, ischios and 

 meros short, carpus apparently united with propodos, which is large and 

 produced distally into a fixed finger against which the dactylos impinges, 

 dactylos strong, rather blunt at end ; the ends of both fingers setose. The 

 first pair of gnathopoda same as those of female. 



