THE FISHES OF THE «INGOLF EXPEDITIONS. Ig 



Lumpenus lampetrseformis Walb. 



is the only northern Lwnpenus-sipecies brought home in few specimens from a locality Southwest of 

 Snkkertoppeu, Station 34: 67- 17' Lat. North, 54' 17' Long. West, depth 55 fathoms, temperature at the 

 bottom o : .9 C. The largest specimen had a length of io,o min . On the distribution of the species may 

 be consulted Collett, Lilljeborg, and Oceanic Ichthyology . 



Flounders. 



Drepanopsetta (Hippoglossoides) platessoides (Fabr.i. 



Of this Plenronectoid the Ingolf expedition has returned some specimens from 



Stat. Lat. N. Long. W. Fathoms 



26: 63-57' 52° 41' Davis Strait. 34 Bottom sand and shells, temperature cr.6 C. 



33 : 67° 57' 55° 30' Likewise. 35 Bottom gray sand, its temperature cr.S C. 



35: 65 16' 55 : 05' Likewise. 362 Bottom brownish mud with arenaceous foraminiferes, tp. 3°.6 C. 



known with us as Haa-Isingen , identical with Pleuronectes limandoides , not only from Greenland, 

 also from Iceland, Beereu-Island , Spitsbergen, the Faroe Islands and along the .Scandinavian and the 

 Northeuropean shores, from the Murmanian coasts and East-Finmark to the Sound, at Kiel and the 

 southern Danish seas and also from the English-French channel; on the American side to Cape Cod. 



The genus Lycodes. 



It will be well known to the ichthyologists, especially to those studying the arctic fauna, that 

 to distinguish between the species of this genus is connected with special difficulties, because the 

 colouring varies much in the same species, especiall}' after the age, but also individually, likewise the 

 extension of the squamation, and it is therefore extremely difficult to fix the limit between the 

 species by means of characters that may be confided on. As our museum possesses now more or 

 fewer specimens of 15 /.v<We\f-species from the Polar sea, the northern part of the Atlantic 1 ) and the 

 Califoruian part of the Pacific one should hope, that the difficulties might be overcome. But never- 

 theless my report specially for this department must be given with a certain restraint. The scientific 

 literature amply testifies, that it is a more easy matter to make mistakes in this department than 

 avoid them. A greater lucidity will not be obtained until the collected material has attained a com- 

 pleteness that at present is only obtained for a few species among the many. 



') As this genus was not found formerly in any of the Danish seas, it should be remarked that a fish of this ,-■■ 

 T 55 mm long, was taken in 1893 in Lseso Rende, afterwards several in the Skager-Rack 1 jfr. S. 21) viz a M 



