Genus Compressidens H. A. Pilsbry & B. Sharp, 1897

(8-0-2-0-0-3-0-2-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 51
Vaught, 1989 p 143

ophiodon (W. H. Dall, 1881)

(8-0-2-0-0-3-0-2-0-1-0-0-0)
Flattened Toothshell
Ref. Amer. Fish. Soc., 1988 p 51

pressus (H. A. Pilsbry & B. Sharp, 1897)

(8-0-2-0-0-3-0-2-0-2-0-0-0)
Compressed Toothshell
Ref. Amer. Fish. Soc., 1988 p 51

stearnsii H. A. Pilsbry & B. Sharp, 1897

(8-0-2-0-0-3-0-2-0-3-0-0-0)
Stearns Toothshell
Ref. Amer. Fish. Soc., 1988 p 51