85 



division and somewhat less broad, with the anterior segments produced laterally 

 to well defined, posteriorly-pointing acute projections; last segment very large, 

 with the lateral edges somewhat arched and minutely denticulate; anal opercle 

 edged with about 10 strong denticles. Caudal rami comparatively small, being 

 only slightly longer than they are broad; dorsal seta issuing from a rather 

 prominent tubercle somewhat in front of the middle; apical setae unusually 

 short. Anterior antennae not nearly attaining the length of the cephalic seg- 

 ment; 2nd joint shorter, but much broader than the 3rd; terminal part about 

 the length of those joints combined. Posterior antennae rather small, with the 

 outer ramus replaced by a simple seta. Posterior maxillipeds comparatively 

 strong. Natatory legs with the inner ramus poorly developed, only consisting 

 of a single joint, carrying in the 2 anterior pairs 4, in the 2 posterior pairs 

 only 2 setae. Last pair of legs with the distal joint narrow oblong in form 

 and only provided with 4 setae, 2 apical and 2 lateral; inner expansion of 

 proximal joint conically produced, and extending about to the middle of the 

 distal joint, tip provided with 2 subequal setae. 



Colour whitish grey. 



Length of adult female 0.78 mm. 



Remarks. In the structural details this form seems to approch nearest 

 to E. major G. O. Sars. It is however rather inferior in size and moreover 

 at once distinguished by the well-marked lateral armature of the anterior seg- 

 ments of the urosome, as also by the less produced caudal rami. 



Occurrence. Two female specimens only of this form have as yet 

 come under my notice. They were taken at Ris0r from a depth of about 

 30 fathoms. 



70.. Eurycletodes aculeatus, G. O. Sars, n. sp. 



(PI. LIX). 



Specific Characters. Female. General form of the body somewhat 

 resembling that in E. oblongus, though perhaps a little shorter and stouter. 

 Cephalic segment scarcely longer than the 2 succeeding segments combined; 

 rostral projection only slightly prominent and obtusely pointed at the end. 

 Urosome about the length of the anterior division, and having the hind edges 

 of the segments very coarsely dentate, the outermost tooth on the 2 anterior 

 segments being much stronger than the others and projecting on each side. 

 Last caudal segment large, with the lateral edges slightly convex and finely 

 hairy; anal opercle broadly rounded off and edged with about 12 denticles of 



