920 MR. F. E. BEDDARD ON ISOPODA COLLECTED [DeC. 1, 



The species is very closely allied to Eurycope fragilis. The head 

 is long, equalling the two first segments at the thorax taken 

 together ; it has a pair of hooked spines, one on eitlier side of the 

 median hne. Of the first four segments of the thorax, the first is 

 rather shorter than the rest, which are siibequal ; the three last of 

 these segments are furnished with a longish median spine ; the 

 lateral margins of these segments, as in so many other species, are 

 prolonged into a forwardly directed spine. 



The three posterior segments of the thorax have the form charac- 

 teristic of the genus ; the two first of these segments have a pair of 

 median dorsal Opines, which appear to be wanting on the third. 



The abdominal segment is somewhat oval in form, and terminates 

 behind in an obtusely pointed extremity ; in front of the articulation 

 of the uropoda are a pair of lateral spines which are curved forwards 

 in a crescent shape ; in front of these, and near to the antero-lateral 

 margin, are another pair of spines. On the dorsal surface are also 

 a pair of spines, situated one behind the other. 



Station 7&, 900 fathoms. 



Eurycope, sp. 



At Station 147 a fragment of an Isopod was obtained, which I 

 refer doubtfully to the above species ; it consists of the last three 

 segments of the thorax and the first half of the abdomen : all these 

 thor.'icic segments have a pair of median spines, and there are two 

 dorsal spines upon the abdomen ; the size of the fragment indicates 

 a specimen of about 20-25 millim. in length. 



Station 147, 1600 fathoms. 



5. Eurycope fragilis, u. sp. 



This species has a greater horizontal and vertical distribution 

 than any of those obtained by the ' Challenger.' A large specimen, 

 measuring 30 millim., was dredged in the Antarctic Ocean south of 

 Kerguelen ; another specimen, smaller, between Prince Edward's 

 Island and the Crozets ; and a third between Kerguelen and Aus- 

 tralia; finally, a number of small individuals were dredged off the 

 coast of Japan in the North Pacific. 



This species is nearly allied to E. atlantica, but differs from it in 

 the following points : — there are no spines developed upon the head, 

 which is smooth and convex as in the majority of species. The 

 abdomen differs very much in shajie in the two species ; in the 

 present species it is wide and more triangular in form ; the anterior 

 lateral spines are nearer to its articulation with the last segment of 

 the thorax ; there is only one spine upon the dorsal surface of 

 the abdomen, situated near to the proximal extremity. 



Station 1.52, 1260 fathoms; Station 147, 1600 fathoms; Sta- 

 tion 158, 1800 fathoms; Station 237, 1875 fathoms. 



6. Eurycope pellucida, n. sp. 



The present species is quite the largest of the family Munnopsidse. 

 The single specimen (a male), from near New Guinea, measures 

 45 millim. in extreme length. 



