28 



Distribution. -- Off Reykjavik, Iceland, and at Stat. 290 of the Norwegian 

 North Atlantic Expedition (the present author); coast of Denmark (Meinert). 



2. Leptognathia breviremis (Lilljeb.) 



(PL XIII, fig. 1) 

 Tanais breviremis, Lilljeborg, 1. c. p. 21. 



Specific Characters. 9- Body much shorter and thicker than in the 

 preceding species, being scarcely 6 times as long as it is broad, with the cepha- 

 losome longer than the first 2 segments of mesosome combined, and rather nar- 

 rowed in front. Segments of mesosome separated by rather deep, though nar- 

 row constrictions, the 1st one not being much shorter than the 2nd. Metasome 

 somewhat fusiform in outline, being slightly dilated in the middle, with the side- 

 contours regularly convex, and the terminal segment evenly rounded at the tip. 

 Superior antenna with the basal joint not attaining the length of the other 3 

 combined, 2nd joint fully as long as the outer 2 taken together. Chelipeds of 

 moderate size, with the hand about the size of the carpus, and somewhat dilated 

 beyond the middle, fingers much shorter than the palm. Pereiopoda resembling 

 in structure those in the preceding species, except that the basal joint of the 3 

 posterior pairs is less tumefied. Uropoda very short, scarcely longer than the 

 terminal segment of metasome, inner ramus biarticulate and tipped by long 

 divergent setse, outer one extremely small, uniarticulate. Length 1.45 mm. 



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

 distinguished from the other species belonging to this genus by its comparatively 

 short and thick body, and by the comparatively short uropoda, which latter character 

 lias given rise to the specific name proposed by its discoverer. It is a rather 

 small species. 



Occur ence. I have met with this form rather frequently in the Chri- 

 stiania Fjord at depths ranging from 20 to 60 fathoms, and also in several other 

 places on the south and west coasts of Norway. It extends northwards as fai- 

 ns Kvalo on the Nordland coast. 



Distribution. Bohusliin (Lilljeborg); Kattegat (Meinert). 



3. Leptognathia filiformis (Lilljeb.) 



(PI. XIII, fig. 2). 

 Tanais filiformis, Lilljeborg, 1. c. p. 23. 



'^/H'dfic Characters. 9- Body extremely slender, almost filiform, 11 

 times as long as it is broad, with the cephalosome rather narrow, and the 1st 



