230 Proceedings of the Royal Society of Victoria. 



dotted over with short spinules ; the outer ramus has a single 

 row of spinules on the outer upper margin. The third has been 

 sufficiently described. 



Family CALLIOPIIDAE. 

 Atyloides gabrieli, sp. n. 



(Plates XXXVII. and XXXVIII.). 



Body robust, smooth, without dorsal projections. Cephalon 

 deep, rostral projection minute, lateral corners evenly rounded, 

 inferior edges deeply excavated, post-antennal corners slightly 

 produced and narrowly rounded. Eyes small, spherical, black. 

 Coxal plates of first four segments of mesosome of subequal depth 

 to their respective segments, each broadly rounded below and 

 unclothed, the first scarcely expanded distally, the fourth as 

 broad as deep, and deeply excavated behind. Segments of 

 metasome deep, their postero-lateral angles right angled. 



Upper antennae a little longer than half the length of the 

 body, secondary appendage minute, uniarticulate; peduncle one- 

 third the length of the flagellum, its lower margin beset with 

 numerous clusters of long setae, first joint stout, second slightly 

 shorter, third half as long as the second; flagellum with first 

 joint oblong, succeeding ones transverse. Lower antennae with 

 peduncle almost reaching the extremity of peduncle of upper, its 

 two last joints subequal, and clothed along their lower margins 

 with long setae, flagellum somewhat longer than the peduncle. 

 Gnathopoda small, subecjual, the second longer and the hand 

 slightly larger; carpus as long as the propodus, posteriorly 

 bearing about seven transverse rows of long feathered setae, and 

 expanded distally to a small rounded lobe; propodus oblong, 

 widening slightly distally, palm oblique, almost straight, and 

 minutely serrate, margin spinulose, limited by a long spine, outer 

 face with an oblique row of five clusters of long setae; dactylus 

 as long as the palm, entire and unclothed. First two pairs of 

 peraeopoda longer than gnathopods, succeeding ones slightly 

 increasing in length, bases expanded. First uropoda with ped- 

 uncle longer than rami, rami subequal, extending nearly to the 



