﻿Chapter I. 



On the occurrence of flat-fishes, and on some other 



biological conditions, concerning these fishes, in the 



seas east of the Skaw. 



15 species of flat-fishes are known in our seas east of the Skaw: 



1) Plenronectes platessa. 



2) — flesus. 



3) — limanda. 



4) — microcephalus. 



5) — cynoglossus 



6) Hippoglossus vulgaris. 



7) Hippoglossoides or Drepanopsetta platessoides. 



8) Rhomfois maximus. 



9) — Imvis. 



10) Arnoglossus laterna. 



11) Zeugopterus norvegicus. 



12) megastoma. 



13) — punctatus. 



14) Solea vulgaris. 



15) — lutea. 



During these researches only one specimen of No. 15 has been found. 

 Formerly I have found four others, at Frederikshavn 1884. No. 10, which 

 has hitherto been looked upon as a rare fish in our seas, was found in 

 considerable numbers, but it is so small and of so little value as food for 

 man, that it cannot be taken into consideration in an eventual law. 



Nos. 11 — 12 — 13 are so rare, and so small too, that they are of no 

 value as human food. 



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