84 



ments combined, and produced in front to a rather prominent acutely pointed 

 rostral projection. Urosome about the length of the anterior division, with 

 the 3 anterior segments produced on each side to well-marked spiniform pro- 

 minences, giving that part a pronouncedly serrate appearance; last segment 

 very large and, viewed from above, regularly quadrangular in outline; anal 

 opercle edged with scattered strong denticles (about 5 in number). Caudal 

 rami resembling in shape those in E. laticaiidatus, being rather narrow and 

 somewhat tapered distally; dorsal seta issuing from a knoblike prominence at 

 a short distance from the end of the ramus. Anterior antennae not fully 

 attaining the length of the cephalic segment and, as in the other known 

 species, composed of 6 joints, 3 of which belong to the terminal part, 1st 

 joint the largest, 2nd joint a little shorter than the 3rd; terminal part about 

 the length of the 2 preceding joints combined, with the last joint rather 

 produced. Posterior antennae without any trace of an outer ramus. Mandi- 

 bular palp distinctly biarticulate. Posterior maxillipeds moderately strong. 

 Natatory legs with both rami well developed; the inner one biarticulate 

 and in 1st pair nearly as long as the outer, in the succeeding pairs rather 

 shorter. Last pair of legs with the distal joint oblong oval in form and only 

 slightly tapered distally, marginal setae 5 in number; inner expansion of prox- 

 imal joint not much produced and carrying 3 subequal setae. 



Colour dark grey. 



Length of adult female 0.87 mm. 



Remarks. The present form is nearly allied to the type species, E. 

 laticaiidatus (Boeck), agreeing with it rather closely in most of the structural 

 details. It is however of considerably larger size, and moreover at once 

 distinguished by the conspicuously serrated edges of the urosome, in which 

 latter respect it more resembles E. latus (Scott). 



Occurrence. Some few female specimens of this fine species were 

 taken at Ris0r from a depth of 60 80 fathoms, muddy bottom. 



69. Eurycletodes oblongus, G. O. Sars, n. sp. 



(PI. LVIII). 



Specific Characters. Female. Body comparatively more slender than 

 in the preceding species, oblong in form, with the segments less coarsely 

 denticulated at the hind edges. Cephalic segment fully as long as the 3 suc- 

 ceeding segments combined, and produced in front to a broadly triangular 

 rostral projection. Urosome scarcely attaining the length of the anterior 



