36 



Mindeskrift for J. Steenstrup. XXX. 



qualitative composition of the fish fauna of this deep basin. It is very poor as re- 

 gards the number of species. From the Shetland — Faeroe channel up to the height 

 of Spitsbergen the trawl constantly brings up the same forms in tedious monotony; 

 if we include all the species, both the common and the rare, the number is only 23. 

 They are distributed among the following groups : 



Sea-scorpions: 

 CottnncuUis uiicrops Collett 



* — subspiiiosus Jensen 

 Artediellus nncinatus Reinhardt 

 Agoniis decagoniis Bloch-Schneider 



Liparids: 

 Liparis Fabricii Kroyer 

 Careprodus Reinhardti Kroyer 



* — micropus Gunther 

 * Paraliparis bathijbii Collett 

 *RhodLchlhijs regina Collett 



L y c d e s : 

 *L>jcodes frigidiis Collett 



— Esmarkii Collett 



— eiidipleurost ictus Jensen 



— pallidns Collett 



Lycodes: 

 *Lycodes platyrhiims Jensen 

 * — Liitkeni Collett 



— seininiidus Reinhardt 

 *Lyce7ichehjs inurasna Collett 

 *Lycodofius flagellicauda Jensen 



Gadoids: 

 Onus Reinhardti Kroyek 



Flat-fish: 

 Platysomatichthys hip poglosso ides Walb aum 



Sharks: 

 Somniosiis )nicrocephaIiisBLOcn-ScH'SEiD^K 



Rays: 

 Raja radiata Donovan 

 — kyperborea Collett 



The 9 species marked with an asterisk must be regarded as characteristic of the 

 Deep Norwegian Basin '), being a part of the special fauna of this deep basin and not 

 known from any other region of the sea. In my "Ichthyologiske Studier"") I have 

 shown, namely, that the statement of the presence of some of these species (Lycodes 

 frigidus, Lycenchelys munena) in the warm Deep Atlantic Basin (i. e. south of the above- 

 mentioned ridge between Europe and Greenland) arose from erroneous determinations, 

 as also the reverse statement that a species describeil from the Deep Atlantic Basin 

 {Cottuncidus ineriiiis Vaillant) may occur in the cold Deep Norwegian Basin. The 

 remaining 14 species do not have their proper home in the Deep Norwegian Basin; 

 Ihey are for the most part arctic fish which in the high north live in shallower depths, 



') It should be expressly remarked, that by the "Deep Norwegian Basin" is understood 

 only the region of the Norwegian Sea which lies 300 fathoms and more below the surface of the sea. 

 -) Vidensk. Meddel. Ira Naturhist. P'oreu. i Kobenhavn, I'JOl, pp. I'Jl— 21.5. 



