114 MR. F. E. BEDDARD ON ISOPODA COLLECTED [Feb. 2, 



from that family on account of the branchiate uropoda; but Anuropus 

 should at least be regarded as the type of a special subfamily 

 equivalent to any of the other four, viz. Cymothoadiens errants, 

 C. raviseurs, C. branchiferes, and C. parasites, into which MM. H. 

 and A. Milne-Edwards have divided the family. Anuropus has a 

 further "abyssal character" in the absence of eyes, and it is 

 also remarkable for the abortive antennules, which are only repre- 

 sented by two joints — a stout basal joint, and a longer stout curved 

 distal joint, which is possibly the equivalent of a metamorphosed 

 flagellum. The single species I may term 



1. Anuropus branchiatus, u. sp. 



The extreme length of the specimen, which is a female, is 70 millim. 

 The head is small, and entirely without eyes ; the body is extremely 

 convex ; the thoracic segments are subequal, the six posterior are 

 furnished with distinct epimera ; the abdominal segments are all 

 smaller than the thoracic segments and subequal ; the fifth segment is 

 fused with the telson and forms a caudal sliield, which is rounded and 

 flattened in shape. There is no trace of eyes ; the antennules are 

 short and thick, consisting of a thick basal joint and a longer, some- 

 what curved distal joint. The antennce are longer and more slender, 

 and quite normal in structure ; the mandibles have a three-jointed 

 palp. The abdominal appendages are all similar to each other, 

 consisting of a short, stout, basal joint, and two equal rami flattened 

 and rounded in form. 



Station 218 ; 1070 fathoms. 



Fam. Sph^romid^. 

 Genus Cymodocea, Leach. 



1. Cymodocea abyssorum, n. sp. 



This species is the only representative of the family at present 

 known from deep water ; it is represented by two individuals, one a 

 male, the other a female. The body in both is flattened, and is 

 evidently incapable of being rolled into a ball. The eyes are small 

 and whitish from the absence of pigment ; the first thoracic segment is 

 broader than the head, the following segments are subequal, and with 

 well-developed sickle-shaped epimera, absent in the last of tlie seg- 

 ments. Abdominal shield with two blunt conical spines on the dorsal 

 surface, one behind theotlier ; posterior extremity obtuse and rounded. 

 Uropoda with the rami subequal in the female, the outer being 

 slightly the longer ; in the male the outer ramus is very much longer 

 than the inner and curved inwards. 



Station 218 ; 1070 fathoms. 



Fam. Apseudid^. 

 Genus Apseudes, Leach. 

 1. Apseudes Antarctica, n. sp. 



The largest specimen of this small species measures 4 millim. in 

 length. The cephalothorax is nearly as long as the first four segments 



