286 BIOLOGICAL SURVEY OF 



VERTEBRATA 

 Class PISCES 



The fishes of this general region have been quite com- 

 pletely covered by Bigelow and Welsh (1925), and no great 

 number of fishes were taken by the Survey in the deeper 

 waters ; in fact, our methods of collecting did not lend them- 

 selves particularly well to the capture of fishes. We, how- 

 ever, kept records of such fishes as came under our notice, 

 and we have seen of some of these the eggs or young fishes. 



The work which we were able to do on the embryology of 

 Lophius has already been published in Part II of the Survey 

 reports. 



We were also able to find the eggs of Cyclopterus. 



To simplify the use of the list by American readers, the 

 book by Bigelow and Welsh has been followed both as to 

 arrangement and nomenclature. It is not, therefore, neces- 

 sary to give a special reference under each species, since the 

 descriptions and figures can be found in that work under 

 the names used here. 



The account of fishes in Die Tierwelt der Nord- und Ostsee 

 by Ehrenbaum et al. (1925-1929) gives a more adequate idea 

 of the modern classification of fishes, and should be referred 

 to by those who are interested in the more complicated system 

 as developed by Regan and others. 



Subclass ELASMOBRANCHII 

 Order SELACHII Sharks 



Squalidae 

 Squalus Linne 

 S. ACANTHiAS Liiiue. Dogfish. Quite commonly taken on 

 trawls. More frequent inshore in the latter part of the 

 summer. 



