CHECK LIST N. AMER. AMPH. REPT. 153 



TRIONYCHIDAE (FAMILY) 



Amyda (GENUS) 



Oken, Lehrb. Zool., Vol. 2, 1816, p. 348 

 type: euphratica 



SOFT-SHELLED TURTLES 



Amyda emorjd (Agassiz) 



Aspidonectes emoryi Agassiz 



Contr. Nat. Hist. U. S., Vol. 1, 1857, p. 407; Vol. 2, pi. 6, figs. 4, 5. 

 Amyda emoryi Stejneger and Barbour 



Check List N. Amer. Amph. Kept., Ed. 1, 1917, p. 124. 



TYPE locality: Rio Grande River, near Brownsville, Texas. 

 range: Rivers of Texas, north into southern Oklahoma and 

 Arkansas. 



Amyda ferox (Schneider) 

 Testudo ferox Schneider 



Naturg. Schildkr., 1783, p. 330. 

 Amyda ferox Oken 



Lehrb. Zool., Vol. 2, 1816, p. 348. 



type locality: Savannah River, Georgia. 

 range: South Carolina to Florida and Louisiana. 



Amyda mutica (Le Sueur) 



Trionyx muticus Le Sueur 



Mem. Mus. Hist. Nat. Paris, Vol. 15, Dec. 1827, p. 263, pi. 7. 

 Amyda mutica Agassiz 



Contr. Nat. Hist. U. S., Vol. 1, 1857, p. 399. 



TYPE locality: Wabash River at New Harmony, Indiana. 



range: Mississippi River and tributaries; north to South Da- 

 kota and Minnesota; east to western Pennsylvania; west to 

 Kansas, Oklahoma and Texas. Brazos and Colorado Rivers. 



Amyda spinifera (Le Sueur) 

 Trionyx spiniferus Le Sueur 



Mem. Mus. Hist. Nat. Paris, Vol. 15, 1827, p. 258, pi. 6. 

 Amyda spinifera Hurter 



Trans. Ac. Sci. St. Louis, Vol. 20, 1911, p. 251. 



TYPE locality: Wabash River at New Harmony, Indiana. 



range: Mississippi River and tributaries, west to Colorado, north 

 to Montana; St. Lawrence River and tributaries; east to 

 Vermont, western New York, and Pennsylvania. 



