BY WILLIAM A. IIASWELL, M.A., B.SC. 343 



OyrtopMum minutum, sp. nov. (PL XXII., fig-. 6.) 



Anterior segments of the pleon slightly produced in the middle 

 dorsal line. Eyes very prominent.. Superior antennae as long 

 as the cephalon and the first six segments of the pereion ; flagellum 

 subequal with the last segment of the peduncle, of three articuli, of 

 which the first is much longer than the other two ; no appendage. 

 Inferior antennae equal in length to the superior pair ; flagellum 

 scarcely half as long as the last segment of the peduncle, obscurely 

 multiarticulate. Anterior gnathopoda very small, fringed with 

 long hairs ; propodos long-ovate ; palm undefined ; dactylos 

 nearly as long as the propodos. Posterior gnathopoda very large, 

 basos stout ; meros produced below into an angular protuberance ; 

 carpus sub-quadrate ; propodos ovate, dilated, dorsal border 

 strongly convex, palm defined by a prominent acute tooth, and 

 occupied distally by a rounded eminence ; ventral borders of 

 the meros and propodos ornamented with a close fringe of long 

 plumose hairs. Fourth pair of pleopoda with the outer ramus 

 much shorter and narrower than the inner ; both tipped with a 

 few short bristles. Fifth pair with the outer ramus styliform, 

 armed with one or two hairs at the apex, the inner foliaceous, 

 long-ovate, bordered internally with a few hairs. Nearly colourless, 

 with minute brown spots and a transverse brown band on the 

 cephalon at the base of the superior antennae. Length l/10th in. 



JEal. Port Jackson, 



Genus Icllitjs, Dana. 



Icilius punctatus, sp. nov. (PL XXIII., fig. 1.) 



Distinguished from I. anstralis chiefly by the greater breadth 

 of the rami of the three posterior pairs of pleopoda. 



The eyes in this genus are truly compound. The mandibles 

 have their apex double — each half being armed with about six 

 teeth ; between the apex and the grinding tubercle is a row of 

 about half-a-dozen stout, non-ciliated spines; the grinding 



