Genus Truncilla C. S. Rafinesque, 1819

(3-6-4-0-4-9-5-85-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 33
Syn. Troncilla E. A. Rossmassler, 1835
Ref. Vokes, 1980 p 91

cognata (I. Lea, 1860)
(3-6-4-0-4-9-5-85-0-1-0-0-0)
Mexican Fawnsfoot
Ref. Amer. Fish. Soc., 1988 p 33

donaciformis (I. Lea, 1828)
(3-6-4-0-4-9-5-85-0-2-0-0-0)
Fawnsfoot
Ref. Amer. Fish. Soc., 1988 p 33

macrodon (I. Lea, 1859)
(3-6-4-0-4-9-5-85-0-3-0-0-0)
Texas Fawnsfoot
Ref. Amer. Fish. Soc., 1988 p 33

truncata C. S. Rafinesque, 1820
(3-6-4-0-4-9-5-85-0-4-0-0-0)
Deertoe
Ref. Amer. Fish. Soc., 1988 p 33