I ha\e met with tliis small species in several places on the 



-i >iilh and west coast> n|' Nnr\\;iy. from the (Jhristiania Fjord at any rate up to 

 the Trondlijem Kjord. It occurs here and there, together with other species of 

 the L'eniis, in moderate depths aimm^ alga- and llvdmida. 



t. Hay uf Kiel (( iie-|,i -edit), Scottish coast (Scott). 



i ( '">. Amphiascus pallidus, G. 0. Sars, u. sp. 



(I'l. CV). 



c Characters. l''<mnl/'. Body comparatively robust, with the anterior 

 division somewhat broader than the posterior, and slightly depressed. Rostrum 

 rather broad at the base, triangular. Urosome much shorter than the anterior 

 division, and having the segments densely spinulose at the hind edge ventrally 

 and laterally. Caudal rami short, a little broader than they are long, the jj 

 middle apical seta> only slightly thickened at the base. Eye not visible in 

 the living animal. Anterior antenna- rather slender, 4th joint scarcely longer 

 than :>rd, terminal part exceeding half the length of the proximal, and with 

 none of the setse ciliated. Posterior antennae with the outer ramus scarcely 

 as long as the terminal joint of the inner, middle joint very small and with- 

 out any seta'. 1st pair of legs rather strongly built, outer ramus extending 

 beyond the 1st joint of the inner, its middle joint somewhat larger than the other 

 -2, and with a well-developed seta inside, last joint armed with 3 spines and 2 

 ni'iiiculated sette; 1st joint of inner ramus somewhat exceeding the length of the 

 other 2 combined, last joint more than twice as long as the 2nd. apical ela\\ 

 rather strong. Natatory legs well de\ doped, with the full number of setse. Last 

 pair of legs \\ith the distal joint rounded oval in form, carrying 6 marginal setae, 

 l of which, attached to the tip, are very narrow and quite smooth; inner expan- 

 sion of proximal joint extending somewhat beyond the middle of the distal joint. 

 and obliquely truncated at the tip. marginal seta- 5 in number. Ovisacs of mo- 

 derate size, containing numerous ova. 



MX/I \\itli the L J nd basal joint of 1st pair of legs produced inside to L ; 

 blunt spines, in front of which is a small knob-like prominence. 'Jiid pair of legs 

 with the spines of the outer ramus much coarser than in female, inner ramus 

 much shorter than the outer and transformed in the usual manner, distal joint 

 Considerably dilated in the middle, one of its spinit'orm appendages being exceed- 

 ingly -ti"H'j. Last p.-ijr of legs much smaller than in female, distal joint rather 



