EXTINCT OR PRESUMED EXTINCT WILDLIFE 



EXTINCT FISHES 



San Gorgonio Trout, Salmo evermanni ■ Santa Ana River in California . Extinct about 1935 . 



Pahranagat Spinedace, Lepidomeda altivelis . Outflow of Ash Spring and chain of lakes in 

 the Pahranagat Valley in Nevada. Extinct between 1938 and 1959. 



Big Spring Spinedace, Lepidomeda mollispinis pratensis . Spring-fed marsh, Lincoln 

 County, Nevada. Extinct between 1938 and 1959. 



Harelip Sucker, Lagochila lacera . Found in a few clear streams of the upper Mississippi 

 Valley; Scioto River in Ohio, Tennessee River in Georgia, and the White River in 

 Arkansas; also in the Lake Erie drainage, Blanchard and Auglaize Rivers in north- 

 western Ohio. Not seen since 1900. 



Leon Springs Pupfish, Cyprinodon bovinus . Leon Springs, Pecos County, Texas. Not 

 seen since 1938 . 



Ash Meadows Springfish, Empetrichthys merriami . Isolated waters of Death Valley in 

 southern Nevada . Not seen since 1942 . 



EXTINCT BIRDS 



Labrador Duck, Camptorhynchus labradorium . Northeastern North America . Extinct 

 about 1875. Reason unknown . 



Heath Hen, Tympanuchus cupido cupido . Eastern United States . Extinct in 1932. 

 Reasons- -overhunting and loss of habitat. 



Laysan Rail, Porzanula palmeri . Laysan Island, Hawaii. Extinct on Laysan Island in 



1926. Extinct in 1944 on Eastern Island, Midway Atoll where transplanted previously 

 from Laysan. Reasons — loss of habitat (rabbits eating vegetation): predation by rats 

 on Midway . 



Sandwich Rail (Moho) , Pennula sandwichensis . Hawaii Island, Hawaii. Extinct about 1893. 

 Reasons --probably predation by introduced rats and mongooses. 



Great Auk, Pinguinus impennis . North Atlantic Ocean . Extinct about 1844. Reason — 

 overhunting . 



Passenger Pigeon, Ectopistes migratorius . North American . Extinct in 1914. Reasons — 

 overhunting and loss of habitat. 



