HIGH SCHOOL ZOOLOGY. 



69 



.similiar motliod of adhesion to rocks, &c. occurs in the lump- 

 suckers (Cyclopterus) (Fig. 40) where the ventral fins form the 

 centre of the sucking disc. 



Fig. 40.— Lump Fish. Cydopfems lumpm. \. 

 (U. S. F. C.\ 



In addition to the Flying-fi.sh above mentioned, one of tlie 

 Gurnards (Triglidae) possesses tlie power of flight. (Fig. 41). 



Fig. 41 . —The Striped Sea Robin. Prionotus evolans. J. 

 (U. S. F. C.) 



22. Of all the families of Teleosts mentioned, few can com- 

 pai-e in economical importance with the Gadidae and Pleur- 

 onectidae, which differ very much from each other in their general 

 appearance, butagi'ee in the absence of hard rays from the fins, 



