68 



the months of February — June. lu 1904 tlie pelagic young of Lumpenus were 

 takeu iu greatest number iu the western Baltic, theu foUow the Great Belt and the 

 true Baltic, whereas we took the greatest number of the pelagic young of the 

 gunuel iu the Lim Fjord, Kattegat aud Great Belt. In April we found only a 

 few pelagic fish youug iu the Lim Fjord, but over half of these were gunnel. The 

 water in the fjord is fairlj' salt, usually ca. 3 "/o- 



From these iuvestigatious it appears, that the pelagic young of the gunnel 

 are found in the Danish iraters from Jamiary (in the true Baltic from November, 

 according to Ehrenbaum and Strodtmann) to the heginning of June. They are found 

 in all the Danish waters from. the true Baltic to the Skager Bah, only in small 

 numbers in the western and true Baltic and Skager Bak, in specially great nunibers 

 in the Lim Fjord. 



The liottom-stages of the gunnel have only once been found. 



D. 18 — 7 — 02. S. of Gulstav, 6- -7 fin. (western Balti(0, red algæ. Young-flsh trawl on 

 bottom ; 3 gunnel, of which one of the O group. 



This specimen is preserved in the collectiou aud measures SVo cm. in the 

 preserved con dition. 



Older specimens of the gunnel have been found in all the Danish waters 

 except the true Baltic. We have seldom taken more than one iu a haul. 



Catflsli, Anarrhichas lupus. 



Coucerning the spawiiing of this species only the following is noted in the 

 Biological Station's journal: 



D. 6—7—98. Skaw ligthship in S. W., 40 fm. (Skager Rak). Dani.sh trawl: 1 catfish, 

 spawn far from ripe; eggs had a diameter of 3 mm. 



D. 17—4—02. S. of Anholt, 10 miles, 16 fm. (Kattegat). English trawl; 1 large catfish, 

 jmrtly spawned. 



The yonng of the catfish, like the young of Carelophus, was first detected 

 in Danish waters iu the spring of 1902, when the the Biological Station lay in 

 Fænø Sound. A young catfish was taken there on April 6th. Since then only two 

 catfish young have been found in Danisli waters, both in the northeru Kattegat, 

 where A. C. Johansen took them in 1904, on March 14th and 22nd, in a haul 

 with the young-fish trawl (see Tab. 1). The apparatus was on the bottom both 

 times, and there is thus the possibility, that the catfish young taken were not 

 living pelagically. 



The young of the catjish have thus beeti found in Danish waters at the end 

 of March and beginning of April, three specimens in all, one in the Little Belt, and 

 two in the northern Kattegat. 



Otherwise only large specimens of the catfish have been takeu iu the 

 Danish waters, and never more southerly than the Kattegat. 



