84 AXEL OHLIN, ARCTIC CRUSTACEA. 



tary, soft, and membranaceous. Meanwliile, it was Ibuiid by 

 Särs at Bodi) and in the Varanger Fiord, and, on the Nor- 

 wegian North Atlantic Expedition, in the Porsanger Fiord, 

 and off South Cape, Spitzbergen. Särs does not regard th& 

 deviating form of the endopodite of the first pair of male ple- 

 opods as of generic value; but, as the species in all other 

 points closely agrees with the other kno\yn species of Pnre- 

 rjffhrops, he includes it in this genus. 



It also occurs in the Kära Sea (Dijmphna Expedition) 

 and off East Greenland (Swed. Aret. Exp. 1900). It must^ 

 therefore, be considered as decidedly Arctic, but as to how 

 far Särs is right in supposing it also to be circumpolar 

 is a detail which must be left to future researches to prove. 



It ranges bathymetrically from 33 up to 150 fathoms. 

 It lives mainly on muddy bottom, sometimes mixed with 

 sand. 



Letigth of largest male 23 mm. 



» » > female .... 21 » . 



One of the females in my collection had in the raar- 

 supium six eggs of rather large size. The cleavage was 

 iinished, but the formation of the embryo had not yet begun. 



In the other two females the marsupium contained about 

 twenty young ones, most of which were of a length of 4 mm. 



38. Parerythrops spectabilis (t. O. Sars. 



1877. Parerythroiis spectabilis G. O. Sars, Prodr. descript. Crust. 



etc, 1. c. p. 243. 

 1885. ^ » G. O. Sars, Norweg. North Atl. Exp. 



I, p. 47, pl. 5, fig. 5 — 12. 



Localities: 



in 1899: 



stat. 18. lat. 74° r>2' N., long. 17' 16' W., depth 350 m., muddy 

 clay, sand and pebbles, 4, VII, ene spec. (ef*). 



in 1900: 



stat 21. East Greenland between IJontekoe Island and Mackenzie Bay,, 

 depth 250 m., mud, 8 VIII, several spec. (iScf, 12$). 



This species, which is distinguishable by its considerable 

 size, the its eyes, and the armature of the apex of telson. 



