BY WILLIAM A. IIASWELL, M.A.. B.SC. 275 



the others. Fifth pleopoda with the inner ramus larger than the 

 outer. Inner ramus of sixth pleopoda foliaceous, outer small, 

 long- ovate. 



Length about three lines. 



Hah. Port Jackson. (Dredged.) 



The nearest ally of the present species appears to be Icilius 

 elliptieus, (Dana, U. S. Explor. Exped., p. 844., pi. 56., fig. 4. 

 Spence Cate, Cat. Amph., p. 285., pi. 47., fig. 10.) obtained in 

 the north of Borneo, with which it is sufficiently closely connected 

 to be placed in the same genus. The geographical distribution 

 of this genus will be a matter of great interest. 



GROUP ABERRANTIA. 

 Fam. CAPKELLIDJE. 



Genus Proto, Leach. 



Proto Nova>Hollandrte, sp. nov. (PL XII., fig. 3.) 



Animal smooth, constricted at the joints. Superior antenna) 

 about one-third of the length of the body ; basal joint of peduncle 

 thick, shorter than the others ; second joint the longest ; flagellum 

 shorter than the second and third segments of the peduncle. 

 Inferior antenna) more than half the length of the superior ; 

 peduncle more than twice as long as the flagellum. First pair of 

 gnathopoda with the propodos broad, the palm oblique, slightly 

 convex, armed with a series of short spines, and defined by a 

 strong tooth surmounted by a spine. Posterior pair with the 

 propodos ovate, swollen, three times as long as that of the first 

 pair. First pair of pereiopoda slender, as long as the second and 

 third segments of the pereion, with a slight tooth on the posterior 

 margin of the propodos. Second pair much larger than the first 

 or third, rather longer than the cephalon and the first two 

 segments of the pereion, the carpus, propodos and dactylos short, 

 the propodos armed with four spines and a row of serrations on its 



