296 



apical seta very slender and elongated. Inner rami of the 3 succeeding pairs 

 well developed and, like that of the 1st pair, distinctly biarticulate. Last pair of 

 legs with the distal joint narrowly produced and carrying 4 strong marginal setae, 

 3 on the outer edge and one at the tip; inner expansion of proximal joint very 

 short, with 2 slender ciliated setse. 



Male with the anterior antennae distinctly hinged, though having the last 

 joint of the proximal part only slightly dilated. Natatory legs of exactly the same 

 structure as in the female. Last pair of legs, however, smaller, with only 3 setae 

 on the distal joint, and a single one inside the proximal joint. 



Colour dark yellowish grey. 



Length of adult female 0.65 mm. 



RemarTcs. This form, first described by Th. Scott, looks very like E. latus, 

 but on a closer examination may be readily distinguished by the non-produced 

 lateral parts of the caudal segments, and by the longer and narrower caudal rami. 

 It also differs, as shown by the above diagnosis, in some of the structural details. 



Occurrence. I have found this form not unfrequently in several localities 

 of. the south coast of Norway, for instance at Ris0r, Lillesand and Farsund, in 

 moderate depths, and Th. Scott also records it from the Lofoten Islands. 



Distribution. Scottish coast (Scott), Spitsbergen and Franz Josef Land 

 (Scott). 



196. Eurycletodes major, G. 0. Sars, n. sp. 



(PL CCIV). 



Specific Characters. Female. Body more slender than in any of the 3 

 preceding species, sublinear in form, being of about equal width throughout; all 

 the segments sharply marked off from each other, and without any visible arma- 

 ture. Cephalic segment rather short, scarcely longer than the 2 succeeding seg- 

 ments combined, and produced in front to a moderately prominent triangular 

 rostral projection. Urosome somewhat shorter than the anterior division, and 

 having none of the segments produced laterally; last segment very large, exceeding 

 in length the 2 preceding segments combined, anal opercle very minutely denti- 

 culate. Caudal rami comparatively small and far apart, gradually tapered distally, 

 dorsal seta issuing near their base; middle apical seta scarcely exceeding in length 

 the last segment. 'Anterior antennae of a structure similar to that in the 2 pre- 

 ceding species. Posterior antennae resembling those in the type species, and 

 without any trace of an outer ramus. Posterior maxillipeds of moderate size, 



