BlHANa TILL K. SV. VET.-AKAD. HANDL. BAND 27. AFD. IV. NtO 8. 81 



Farther north it dwells in shallower depths. In Murman 

 Sea it was once dredged at a depth of only 10 fathoms. 

 Letigfh of my spec. (a male) 15 mm. 



35. Erythrops abyssorum G. O. Öars. 



1800. Erythrops abyssorum G. O. Särs, Underseg. över Christiania 



tiordens Dybvandsfauna, 1. c. p. 32 G. 



1870. » » G. O. Sars, Carcinol. Bidrag til Norges 



Fauna etc, 1. c. p. 36. tab. V, fig. 1 — 12. 



Localities: 

 iu 1809: 



stat. 25. lat. 72° 28' X., long. 21° 48' W., depth 180 m., muddy 

 bottom, some stones, 24 VII, one spec. 



in 1000: 



stat, 1(5. lat. 72° 25' N., long. 17' 56' W., E. of Greenland, depth 

 300 m., stones nud sand, 30/VII, four spec. 



This species, which is closely allied to Erythrops serrata 

 (x. O. Sars, was first discovered by the great JSTorwegian 

 €arcinologist in great abundance in an isolated deep basin 

 off the exteriör part of the Christiania Fiord where it occur- 

 red on muddy bottom, in depths ranging from 150 to 230 

 fathoms. There it was living together with Munnopsis typica, 

 Euri/copc cornufa, and other Arctic crustaceans. Afterwards 

 it was observed off Lofoten Islands, and, on the Norwegian 

 North Atlantic Expedition, in the Porsanger Fiord, and also 

 off Jan Mayen. It was, moreover, obtained during the 

 Dijmphna Expedition at four stations in the Kära Sea. It 

 was also obtained by Vanhöffen in Karajok Fiord, West 

 Greenland. Its occurence off East Greenland, together with 

 the finds of it mentioned above, thus attest its Arctic origin. 

 In the Arctic Ocean it seems to live in shallower water, 

 €. g., in the Kära Sea, it was taken at a depth of 51 

 fathoms. 



As Sars has shown, this species is snbject to some va- 

 riations in the size of the eyes and the length of the perei- 

 opods. The deeper the water in which it lives, the 

 smaller become the eyes; and, on muddy bottom, the legs aer 



6 



