? Genus Lirularia W. H. Dall, 1909

(5-4-1-3-2-11-10-6-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 55
Lindner, 1977 p 38

acuticostata (P. P. Carpenter, 1864)
(5-4-1-3-2-11-10-6-0-1-0-0-0)
Sharp-rib Lirularia
Ref. Amer. Fish. Soc., 1988 p 55

bicostata (J. H. McLean, 1964)
(5-4-1-3-2-11-10-6-0-2-0-0-0)
Two-rib Margarite
Ref. Amer. Fish. Soc., 1988 p 55

discors J. H. McLean, 1984
(5-4-1-3-2-11-10-6-0-3-0-0-0)
Incongruous Lirularia
Ref. Amer. Fish. Soc., 1988 p 55

lirulata (P. P. Carpenter, 1864)
(5-4-1-3-2-11-10-6-0-4-0-0-0)
Lirulate Margarite
Ref. Amer. Fish. Soc., 1988 p 55

optabilis (P. P. Carpenter, 1864)
(5-4-1-3-2-11-10-6-0-5-0-0-0)
Choice Margarite
Ref. Amer. Fish. Soc., 1988 p 55

parcipicta (P. P. Carpenter, 1864)
(5-4-1-3-2-11-10-6-0-6-0-0-0)
Few-spot Lirularia
Ref. Amer. Fish. Soc., 1988 p 55

succincta (P. P. Carpenter, 1864)
(5-4-1-3-2-11-10-6-0-7-0-0-0)
Girdled Lirularia
Ref. Amer. Fish. Soc., 1988 p 55