24 



free segment of mesosome longer than the last one, and not much shorter than 

 those immediately succeeding it. Metasome ahout the length of the last 2 segments 

 of mesosome combined, terminal segment evenly rounded at the tip- Superior an- 

 tenna} rather short, scarcely more than half as long as the cephalosome, basal 

 joint much longer than the other 2 combined. Chelipeds of moderate size, hand 

 oblong in form and somewhat shorter than the carpus, fingers about the length 

 of the palm. 1st pair of pereiopoda considerably longer than the others, the 

 3 posterior pairs rather short, with the basal joint not much tumefied. Uropoda 

 scarcely longer than the terminal segment of metasome, rami very unequal, the 

 outer one extremely' small and uniarticulate, pointing generally straight outwards, 

 inner ramus more than twice as long, and distinctly Inarticulate. Length 

 1.60 mm. 



Remarks. — The present species, established by Prof. Lilljeborg, is easily 

 recognized by the very slender and narrow body, the comparatively short superior 

 antennas, and the structure of the uropoda. 



Occurrence. — I have met with this species not infrequently in several 

 places both on the south and west coasts of Norway, in depths ranging from 60 

 to 150 fathoms. It extends northwards to Kvalo on the Nordland coast. 



Distribution. — Coast of Denmark (Meinert). 



8. Typhlotanais eornutus, G. 0. Sars. 



(PI. XI, fig. 2). 



Pat atanais eornutus, G. 0. Sars, Crustacea & Pycnogonida nova in itinere 2do et 3tio Expedi- 

 tionis TSTorvegicae anno 1877 & 78 collecta, No. 5. 



Specific Characters. — 9- Body comparatively short and thick, depressed, 

 about 4 '/2 times as long as it is broad, with the cephalosome rather broad 

 in proportion to its length, and evenly convex on each side, frontal margin pro- 

 duced in the middle to an acute rostriform projection. 1st free segment , of 

 mesosome very short, the others more than twice as broad as they are long, and 

 separated by narrow constrictions. Metasome considerably longer than the last 2 

 segments of mesosome combined, and slightly narrowed in its distal part. Superior 

 antennae about the length of the cephalosome, conically tapering, basal joint 

 somewhat longer than the other 2 combined, terminal joint rather narrow and 

 tipped by slender bristles. Chelipeds of moderate size, and somewhat attenuated 

 distally, hand scarcely attaining the length of the carpus, and oblong oval in 

 form, fingers shorter than the palm. 1st pair of pereiopoda, as usual, longer 



