I. '21. 26 



Dredge. Temperature at depth 9-15° C. — One complete 

 cast shell of $ length of carapace 10-5 mm. 

 S. R. 480.— 28 VIII '07.-51° 23' N., 11° 38' W., 468 fms., 

 stones. Dredge. — One ^ : carapace 14 mm. in length. 



The specimen taken by the Helga at S. R. 480 differs from 

 the above description and from the accounts given by Pocock, 

 and by Milne-Edwards and Bouvier. The outer and inner 

 margins of the right chela are almost smooth — only under a 

 microscope can obscure crenulation be detected. In the left 

 chela, moreover, the median keel is perfectly smooth from 

 end to end, and is quite devoid of the prominent denticulation 

 seen in other specimens. In all other characters, however, 

 the specimen agrees with the excellent description given by 

 the French authors. 



Eupagurus cuanensis (Thompson). 



Plate IV, figs. 1-3. 



Pagurus cuanensis, Thompson, 1843. 



Pagurus spinimanus, Lucas, 1849. 



Pagurus cuanensis. Bell, 1853. 



Eupagurus Lucasi, Heller, 1863. 



Eupagurus cuanensis, Chevreux and Bouvier, 1892. 



Eupagurus cuanensis, Bouvier, 1896. 



Eupagurus cuanensis, Lagerberg, 1908. 



Eupagurus cuanensis, Stephensen, 1910. 



The central part of the frontal margin of the carapace is 

 rounded, without a definite rostral projection. The lateral 

 frontal processes are sharp and pointed. The surface of the 

 carapace bears numerous low scales, from which tufts of setae 

 arise. These are most numerous on the lateral parts and are 

 very long posteriorly ; there are two conspicuous tufts im- 

 mediately behind the centre of the frontal margin, which is 

 itself fringed with setae. The cervical groove is deeply cut 

 and in the middle of the dorsal surface is situated nearer to the 

 hind margin than in the front. The hind margin is deeply con- 

 cave. The abdomen is sparsely covered with tufts of setae 

 and setae also occur on the telson. 



The eyes are long and slender, slightly dilated at the cornea 

 and at the base. The posterior dorsal edge of the cornea is 

 narrowly emarginate and there are setae, arranged singly or in 

 tufts, on the upper surface of the eyestalk. The ophthalmic 

 scales are broad and rounded, fringed with setae and tipped 

 with a strong spine. 



When fully extended the antennular peduncle reaches only 

 a little beyond the end of the eyes. The third joint is the 

 longest and is thickened distally. There are a few setae on 

 the peduncular joints. The upper flagellum is densely clad with 

 setae and is a little longer than the third peduncular joint. 



