20 



robust than in T. tenuimanus, with the basal joint less tumid, and the 3 outer joints 

 each armed inside with a strong denticle. Uropoda about half the length of the 

 metasome, rami very narrow and unequal, the inner Inarticulate, the outer uni- 

 articulate and scarcely more than half as long. Length 2.70 mm. 



Remarks. - This species is nearly allied to T. tenuimanus, though easily 

 distinguishable by several well-marked differences, for instance, the acutely pro- 

 duced frontal margin, the comparatively short superior antennae, the unusually 

 poor development of the chelipeds, and the structure of the uropoda. 



Occurrence. Only a few female specimens of this form have hitherto 

 been found by me. These were collected in two widely-distant localities, viz., at 

 Bekkervig, on the west coast of Norway, and at Kvalo on the Nordland coast, 

 the depths being 60 100 fathoms. 



3. Typhlotanais fmmarehieus, G. 0. Sars. 



(PI. IX.) 



Typltlotanais finmarchicus, G. O. Sars, 1. e. p. 36. 



Specific Characters. - - Body in female sublinear, depressed, about 6 times 

 as long as it is broad, with the segments only separated by narrow constrictions; 

 that of male less elongated, with the segments more sharply marked off from each 

 other. Cephalosome in female almost as broad as it is long, with the side-contours 

 evenly arcuate; that in male considerably more narrowed in front. 1st free 

 segment of mesosome in female about same size as the last one, the 4 middle 

 ones considerably larger and rectangular. Metasome in female of nearly equal 

 breadth throughout, in male much more fully developed, subfusiform and occupy- 

 ing Vs f the length of the body. Superior antenna? in female scarcely attaining 

 the length of the cephalosome, basal joint almost twice as long as the other 2 

 combined; those in male modified in the usual manner, basal joint very large 

 and laminar, slightly widening distally. Chelipeds in female of moderate size, hand 

 slightly dilated in the middle and nearly as long as the carpus, fingers about the 

 length of the palm; those in male somewhat more feeble, with the hand narrower 

 and provided inside the insertion of the dactylus with a transverse row of about 

 5 se.tse. 1st pair of pereiopoda a little longer than the succeeding pairs, and 

 having the dactylus more produced; the 3 posterior pairs moderately strong, with 

 the b;isal joint not much tumefied, and the carpal joint forming a smooth, rounded 

 prominence at the end inside. Pereiopoda in male comparatively more slender 

 than in female. Uropoda rather short, scarcely exceeding l / s of the length of 

 the metasome, both rami distinctly Inarticulate, the outer one shorter and much 



