Genus Ensitellops A. A. Olsson & Harbison, 1953 [f]

(3-4-4-0-11-7-0-9-0-0-0-0-0)
Ref. Abbott, 1974 p 475
Amer. Fish. Soc., 1988 p 38
Bernard, 1983 p 33
Keen, 1971 p 145
Vaught, 1989 p 127
Vokes, 1980 p 115

californica (W. H. Dall, 1899)
(3-4-4-0-11-7-0-9-0-1-0-0-0)
Ref. Abbott, 1974 p 476

hertleini W. K. Emerson & E. L. Puffer, 1957
(3-4-4-0-11-7-0-9-0-2-0-0-0)
Ref. Abbott, 1974 p 476
Bernard, 1983 p 33
Keen, 1971 p 145 d

pacifica A. A. Olsson, 1961
(3-4-4-0-11-7-0-9-0-3-0-0-0)
Ref. Bernard, 1983 p 33
Keen, 1971 p 145 bw

pilsbryi (W. H. Dall, 1899)
(3-4-4-0-11-7-0-9-0-4-0-0-0)
Pilsbry Sportella
Ref. Abbott, 1974 p 476
Amer. Fish. Soc., 1988 p 38

protexta (T. A. Conrad, 1841) [T]
(3-4-4-0-11-7-0-9-0-5-0-0-0)
Pustulose Turton Clam, Textured Sportella
Ref. Amer. Fish. Soc., 1988 p 38
[found in the Pleistocene to the Miocene]
Ref. Abbott, 1974 p 475

tabula A. A. Olsson & Harbison, 1953
(3-4-4-0-11-7-0-9-0-6-0-0-0)
Tube Sportella
Ref. Amer. Fish. Soc., 1988 p 38