139 



of the posterior edge a somewhat projecting angle; the 8 posterior pairs 

 comparatively small. Last pair of epimeral plates of metasome nearly right- 

 angled. First segment of urosome flattened above. Eyes in female very 

 small, rounded, in male much larger, broadly oval, pigment in both sexes 

 blackish. Superior antennse about twice the length of the cephalon, penul- 

 timate joint of the peduncle the longest; flagellum in female scarcely attaining 

 the length of that joint and composed of 6 articulations, in male somewhat 

 more elongated and 8-articulate ; accessory appendage about half as long as 

 the flagellum and triarticulate. inferior antennae in female nearly as long 

 as the superior, penultimate joint of the peduncle by far the largest, flagel- 

 lum about the length of the last joint of the peduncle, and composed of 3 

 joints, the 1st of which ecjuals in length the other 2 combined; those of male 

 not quite attaining the length of the body, last joint of the peduncle 2)rovided 

 with 7 calceolse. Antepenultimate pair of pereiopoda with the outer joints 

 moderately expanded, dactylus simple, acuminate. Second pair of uropoda 

 with tlie rami styliform, not curved in a hook-like manner; last jjair with 

 the inner ramus about as long as the basal joint of the outer; both rami in 

 male den.sely fringed with ciliated setse. Telson oval triangular, somewhat 

 more long than broad, cleft very narrow, each of the terminal lobes with a 

 slight indentation at the tip, in the bottom of which a sliort spine and a 

 small bristle are affixed. Colour yellowish, changing in the female to light 

 orange. Length of adult female 6 mm, of male about the same. 



liemarJcs. — This species is very nearly . allied to U. degans Sp. Bate, 

 as recently described by the Rev. Mr. Stebbing, and scarcely exhibits any 

 more prominent distinctive character except the coloration. It is also very 

 like U. marina of the same author, though differing by its somewhat smaller 

 size, and by the structure of the uropoda. 



Occurrence. — I have met wdth this form not rarely in several locali- 

 ties ofl' the west coast of Norway, as also in the Trondhjemsfjord and along 

 the whole coast of Nordland up to Hasvig in West Finmark. Boeck collected 

 it in the Christianiafjord and at Haugesund. It occurs in depths varying 

 from 20 to 100 fathoms, especially where the bottom consists of a loose sandy 

 clay, in which it may be found to burrow itself with great dexterity. 



Distribution. — Shetland Isles (Nonnan). 



