70 



FISH GALLERY. 



[Case 13.] carnivorous littoral fishes_, many of which have become accli- 

 matized in fresh water. It is represented in British waters by- 

 several species of Gobius and two of Callionymus (Dragonet). 

 The latter family contains the Lump-suckers [Cijclopterus), the 



Fi^. 54. 







Lump-sucker (Cyclojjterus lumpus) ; with a separate view of th( 

 sucking-disk. 



common species (C lumpus) occurring in North Europe and 

 North America. It is difficult to remove it from any object toj 

 which it has once attached itself by means of its sucking-disk. 



The Pediculati or Sea-devils (Case 13) contain a larger number] 

 of bizarre forms than any other; and there is, perhaps, none ial 



