64 AXEL OHLIN, ARCTIO CRTJSTACBA. 



vvhich it has been taken is 250 metres in stat. 21, 1900. But 

 these ligures give, of course only, an approximate value, and 

 it is only by meaus of shutting nets that we might expect 

 to get certain information as to its bathymetrical range. 



One specimen was infested b}^ the parasitic cirrhiped, 

 Syiori himniodorce G. O. Särs. 



(■olour bright red. 



Letif/fh of largest spec. 69 mm. 



Schizopoda. 



Fam. Euphausiidae. 



Nyctiphaiies G. O. Särs 1883. 



This genus was instituted by Särs, in his »Preliminär}' 

 Notices on the Schizopoda of H. M. S. »Challenger» Expedi- 

 tion), to receive the Northern Thjisaaopoäa Couchii Bell and 

 Thi/sanopoda uorvcgica M. Särs and a new nearly related 

 form, viz. Nyctiphaue.s aiistralis from Bass' Strait. It is 

 mainly,eharacterized by a membraneons reflexed leaHet on 

 the basal joint of the antennulse, and by the rudimentary 

 and dissimilar state of the two hindmost pairs of legs. 



25. Nyetiphanes norvegica (M. Sars). 



1857. Thysanopoda norvegica M. Sars, Om 3 nye norske Krebsdyr, 



I. c. p. 169. 



18G4. » M. Sars, Udförlig Beskrivelse etc, 1. 



c. p. 2. 

 18(54. uana M. Sars, Tillseg til etc, 1. c. p. 84. 



1878. >- Norvegica SMITH, Stalk-eyed Crust. Atl. Coast 



North America etc, 1. c. p. 89. 

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



II, p. 12. 



