262 . Transactions. — Zoology. 



propodos uot broader than the carpus, tufts of setae on both sides ; dactylos 

 long, slightly curved, aud acutely pointed, much longer than the palm, 

 which is slightly concave and defined by a short stout seta. Second 

 gnathopoda with the meros acutely produced at the distal end ; carpus 

 triangular, more than half as long as the propodos, and as wide distally as 

 the propodos ; propodos rectangular, with tufts of setae arranged in three 

 longitudinal rows, end transverse, dactylos short, curved, and impinging 

 against the side of the joint, instead of along the margin. Fifth pleopoda 

 with the rami unequal ; sixth with the rami smaller than in the two 

 preceding species, not reaching beyond the extremity of the fifth pleopoda, 

 and only slightly longer than the peduncle ; seta? on the upper margin and 

 at the end. 



Female. — Differs from the male in having the palm of the first gnatho- 

 pod slightly convex, and not defined. Second gnathopod smaller than that 

 of the male, resembling that of the female of Paranamia typica, but with the 

 palm slightly concave. Length i- inch. 



Hab. Lyttelton Harbour. 



Genus Corophium, Latr. 

 (Cat. Arnphip. Brit. Mus., p. 279.) 



Corophium lendenfeldi, sp.nov. PI. xx., fig. 1, a to e. 



Eye rather large, elliptical, placed on a rounded lobe between the bases 

 of the antenna3. Antennas subequal; upper with basal joint large, stout, 

 about twice as long as broad, second about two-thirds as long as the first 

 and half as broad, third about two-thirds as long as the second and more 

 slender, flagellum of about nine joints, nearly as long as the last two joints 

 of the peduncle, a secondary appendage of two or three joints is also pre- 

 sent ; setae very few and delicate. Inferior antennae with the second joint 

 short, produced inferiorly and anteriorly into a sharp point, third joint 

 nearly as broad as long, fourth longer and stouter than the fifth ; flagellum 

 nearly as long as the last joint of peduncle, bearing below numerous stout 

 setae which become stouter and more curved towards the end. First gna- 

 thopod rather short and stout, ischios and meros short, the latter with a 

 tuft of setae towards distal end, carpus broader than the propodos and about 

 two-thirds as long, thickly fringed with plumose seta? on inferior margin ; 

 propodos narrowing slightly distally, fringed on both sides with plumose 

 setae, dactylos long curved and acutely pointed, not impinging against the 

 propodos. Second gnathopoda similar in form to the first, but longer and 

 more slender, carpus considerably broader than the propodos and of the 

 same length, bearing two longitudinal rows of sparsely plumose setae which 

 are as long as the joint itself ; propodos narrow, tapering distally, fringed 

 on both margins with long setas, dactylos slender, not impinging against 



