66 



DEEP-SEA FISHES 



Deep-Sea 



Fishes 



and one may pass in review the catfishes, carps, eels, trout, salmon, 

 pike, mullets, mackerel, basses, wrasses, drumfish, sculpins, cods, flat- 

 fishes and anglers. 



The end case exhibits the grotesque fishes from deep water, 

 in which they occur to the surprising depth of over 3,000 fathoms, 

 or more than 3 ^ miles. They are usually soft in substance, 

 with huge heads and dwarfish bodies, and are often pro- 

 vided with illuminating organs like little electric bulbs, 

 which can be "shunted" off or on by the fish, and enable the fishes either 

 to see their neighbors or to attract their prey. A group representing a 

 number of these fishes as they are supposed to appear in the gloom of the 

 profound depths, lit up only by their luminous organs, is shown in an 

 enclosure next to the Paddlefish Group mentioned above. 



Before the visitor has completed his review of the hall, he should 

 examine the two wall cases, on either side of the doorway, which explain 

 the characteristic structures of fishes of different groups, and the way 

 in which the groups are related to one another. In one of these wall 

 cases various kinds of fishes have been arranged in a genealogical tree, 

 and the lines and labels give an idea of their evolution. 



[Return to the Elevators.] 



chim.«;ra, a deep sea "shark* 



