Mudpuppies and Waterdogs of the United States
Two genera, Necturus, the mudpuppies and waterdogs, with 5 species in eastern North America, and 1 species of Proteus, a blind cave dweller in Europe. Mudpuppies and waterdogs are aquatic permanent larvae, characterized by deep red plume like gills, 4 toes on both front feet and hind feet, and strongly compressed tails. The male's vent is lined with tiny projectdions, bears 2 fleshy lobes, and is followed by a tranverse broove.
Fertilization is internal and the eggs are laid on the undersides of stones or logs on stream bottoms. The female guards the eggs until hatching.
There are five species of Mudpuppies and Waterdogs in the U.S.
Range is poorly known, northeastern Mississippi to north central Georgia south to the Gulf.
Range is poorly known, mostly central Louisiana to eastern Texas.
Found in the Neuse and Tar River systems, North Carolina.
Found from southeastern Manitoba to southern Quebec south to northern Georgia and Louisiana and introduced into large New England rivers.
Found in the coastal plain of southeastern Vriginia into Georgia (may extend westward along the Gulf coastal plain).