30 



projection not denned from the basal part, and carrying outside 2 or 3 unequal 

 setse. Length 2.80 mm. 



Remarks. This species was likewise established by Prof. Lilljeborg, and 

 may easily be recogni/ed by the comparatively short hand of the chelipeds, but 

 more especially by the peculiar structure of the uropoda. 



Occurrence. The species occurs along the whole Norwegian coast, from 

 the rhristiania Fjord to Yadso. in depths ranging from 30 to 100 fathoms. 



Distribution. Uohuslan (Lilljeborg), Mediterranean at Messina (the 



present author); coast of Denmark (Meinert). 



5. Leptognathia dentifera, G. 0. Sars. n. sp. 



(PI. XIV, ti.r. 2) 



Specific (..'lumtctrrx. 9- Bod}' moderately slender, being not quite 8 

 times as long as it is broad, ceplialosome rather narrowed in front. First free 

 segment of niesosome somewhat longer than the last one. but considerably shorter 

 than the other 4. Metasome ra,ther poorly developed, scarcely as long as the 

 last 2 segments of niesosome combined, and not. any broader, terminal segment 

 comparatively short and obtusely rounded at the tip. Superior antenme with the 

 2nd joint exceeding in length the outer 2 combined. Chelipeds not very strong, 

 hand comparatively short, scarcely attaining the length of the carpus, triangular 

 in form, with an obtuse projection in front of the insertion of the dactyl us. 

 Pleopoda extremely small, though of normal structure, natatory seta' very short. 

 Uropoda exceeding half the length of the metasome. basal part produced at the 

 end inside to an intlexed hook-shaped process, both rami well defined and Inar- 

 ticulate, the outer one scarcely half as long as the inner and much narrower. 

 Length 1.60 mm. 



Iti'-iiinrh-x. This new species may be at once distinguished from any of (In- 

 forms previously described, by the poor development of the pleopoda, but more 

 especially by the peculiar hook-like projection issuing from the basal part of the 

 uropoda inside, which latter character has given rise to the specific name here 

 proposed. 



Occurrence. I have only seen a few female specimens of this form, 

 some of which were ovigerous. They were taken in the Christiania Fjord at Hanko 

 and Soon from depths of 60 100 fathoms. 



