78 



A venomous snake, the Elaps distans, is common to this district and 



the Sonoran fauna. 



Some small mammals are confined to this region also. The genera of 



birds that do not range north of it are— 



Certhiola. 



Zenaeda ^ 



Oreopelia > Pigeons. 



Starnaenas J 



BostrJiamus ) ^^ . 



} Eaptores. 

 Folyborus ) 



Aramus ? t^t ^ 



> Waders. 

 Auduhpnia ) 



FJioenicopterus. 



Haliylana >„ 



Anoiis ^ " . 



The Louisianian district possesses the peculiarities of the austroripa- 

 rian fauna already pointed out, minus those of Florida and Texas. Of 

 Mammalia, the genera Alces, Mustela, Jaculus, Arctomys, Fiber, and Condy- 

 lura are wanting, as well as the red-squirrel, Canada lynx, gray-rabbit, 

 etc. Its most remarkable birds are the nonpareil finch, ivory -billed wood- 

 pecker, parrakeet, etc., while its Flaps fulvius, or coral-snake, is one of the 

 most beautiful of the order. A large and dangerous rattlesnake is also 

 confined to it, viz, Caudisona adamantea, and the well-known moccasin 

 Ancistrodon piscivonis does not range outside of its boundaries. A 

 species of the West Indian Dromicus (serpents) has been found on the 

 Atlantic coast. 



y<=. Species confined to the Louisianian district— 36 : (E confined to 

 the Eastern portion j W to the Western, as far as known). 



Tracliystomata. 



Pseudobranchus striatus. E. 



Froteida. 



Necturus punctatus. E. 



Urodela. 



Amphiuma means. 

 Muraenopsis tridactyla. W. 

 Ambly stoma talpoideum. E. 

 Amblystomn cino-alatum. E. 



