Catalog2ie of tJie Mammals, Birds, Reptiles, etc. 37 



Order 2. Raia^. 

 (The Rays.) 



Family PristidK. 

 (The Saw-fishes.) 



Pristis antiqviorum, Latham. Saw Fish. 2160. 



The saw sometimes grows to be six feet long an one foot across 

 at the base. It is used in tearing pieces of flesh from an animal's 

 body. The detached fragments are then seized and swallowed. 



Family Trygonidte. 

 (The Sting Kays.) 



Urolophus halleri, Cooper. Round Sting-ray. 2162. 



Some parts of the bottom of San Diego Bay are literally lined 

 with this species, nearly buried in sand and mud. The smallest, 

 most abundant and most dangerous of the sting rays. One taken 

 in a net struck at another, the sting passing through the. body. 

 The species grow to be eighteen inches long. 



Dasibatis sayi, Goode and Bean. Stingray. 2164. 



Oi'der 3. Holocephali. 

 (The Chimeras.) 



Family Chimaeridae. 

 ( hima^ra colliasi, Bennett. Rat-fish: Elephant Fish. 2163. 



Pisces. 



(True Fishes.) 



Order i. Selachostomi. 



(Paddle Fislies.) 



Family Polyodontidae. 



(Paddle Fishes.) 

 Polyodon spathula, Jord, and Gilb. Spoon-bill Cat. 2161. 



Order 2. Glaniostomi. 

 (The Sturgeons ) 



Family Acipenseridae. 

 (The Sturgeons.) 



Acipenser rubicundus, Le Sueur, Lake Sturgeon, Ohio Stur- 

 geon. 2167. 



The largest of our lake fishes, sometimes attaining a length of 

 si.\ feet and over. In 1872 - 73 at Green Bay Wis., 14,000 ma- 

 ture sturgeons, weighing 700,000 pounds were handled. 



Acipenser sturio, var oxyrrhynchus. American Sturgeon 

 2 166. 



