142 Fresh Water Aquarium 



and can therefore he safely kept in the same 

 tank with other harmless fishes. 



Stone Roller, Hog Molly, Crawl-on-the-Bottom 

 (Cotostoiiuis nigricans). The color of the 

 hack of this species is olivaceous, marked 

 with dark cross blotches, that of the sides 

 heing silvery white with a peculiar brassy 

 luster, while the lower fins are red. As long- 

 as it remains small, this fish is desirable for 

 the aquarium. It is found in streams from 

 New York to Alabama. 



Cub Sucker, Sweet Sucker (Erimyzoil SU- 

 cctta).. This fish is remarkable in the va- 

 riations of its color, which run through 

 different shades of a more or less dusky 

 brown with black lateral bands or bars. 

 The fins are of a dusky brown. It is found 

 in all states from New York to Texas. 

 When small it can be recommended for the 

 aquarium. 



In contrast to the previously named fishes 

 which, being vegetarians, can be kept to- 



