Subgenus (Hemitoma) W. Swainson, 1840

(5-4-1-2-1-1-2-12-1-0-0-0-0)
Ref. Keen, 1971 p 312

bella W. M. Gabb, 1865
(5-4-1-2-1-1-2-12-1-1-0-0-0)
Syn. Hemitoma (Hemitoma) yatesii W. H. Dall, 1901
Ref. Abbott, 1974 p 21

chiquita L. G. Hertlein & A. M. Strong, 1951
(5-4-1-2-1-1-2-12-1-2-0-0-0)
[=Hemitoma (Hemitoma) natlandi J. W. Durham, 1950]
Ref. Abbott, 1974 p 21

clausa A. Orbigny, 1842
(5-4-1-2-1-1-2-12-1-3-0-0-0)
[=Hemitoma (Hemitoma) octoradiata (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 21

depressa G. B. Sowerby, 1863
(5-4-1-2-1-1-2-12-1-4-0-0-0)
[=Hemitoma (Hemitoma) octoradiata (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 21

golischae W. H. Dall, 1916
(5-4-1-2-1-1-2-12-1-5-0-0-0)
[young Fissurella (Cremides) volcano L. A. Reeve, 1849]
Ref. Abbott, 1974 p 21
[see under Subfamily: FISSURELLINAE]

guadaloupensis G. B. Sowerby, 1863
(5-4-1-2-1-1-2-12-1-6-0-0-0)
[=Hemitoma (Hemitoma) octoradiata (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 21

listeri H. E. Anton, 1839
(5-4-1-2-1-1-2-12-1-7-0-0-0)
[=Hemitoma (Hemitoma) octoradiata (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 21

natlandi J. W. Durham, 1950
(5-4-1-2-1-1-2-12-1-8-0-0-0)
Syn. Hemitoma (Hemitoma) chiquita L. G. Hertlein & A. M. Strong, 1951;
Hemitoma (Hemitoma) scrippsae J. W. Durham, 1950
Ref. Abbott, 1974 p 21
Keen, 1971 p 312 bw

octoradiata (J. F. Gmelin, 1791) [T]
(5-4-1-2-1-1-2-12-1-9-0-0-0)
Eight-rayed Emarginula, Eight-rib Emarginula
Ref. Abbott & Dance, 1982 p 24 c
Amer. Fish. Soc., 1988 p 53
Syn. Hemitoma (Hemitoma) clausa A. Orbigny, 1842;
Hemitoma (Hemitoma) depressa G. B. Sowerby, 1863;
Hemitoma (Hemitoma) guadaloupensis G. BA. Sowerby, 1863;
Hemitoma (Hemitoma) listeri H. E. Anton, 1839;
Hemitoma (Hemitoma) rubida A. H. Verrill, 1950;
Hemitoma (Hemitoma) tricostata G. B. Sowerby, 1824
Ref. Abbott, 1974 p 21 bw

ostheimerae (R. T. Abbott, 1958)
(5-4-1-2-1-1-2-12-1-10-0-0-0)
[=Hemitoma (Montfortia) emarginata (H. M. D. de Blainville, 1825)]
Ref. Abbott, 1974 p 21

retiporosa (W. H. Dall, 1903)
(5-4-1-2-1-1-2-12-1-11-0-0-0)
[=Hemitoma (Montfortia) emarginata (H. M. D. de Blainville, 1825)]
Ref. Abbott, 1974 p 21

rubida A. H. Verrill, 1950
(5-4-1-2-1-1-2-12-1-12-0-0-0)
[=Hemitoma (Hemitoma) octoradiata (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 21

scrippsae J. W. Durham, 1950
(5-4-1-2-1-1-2-12-1-13-0-0-0)
[=Hemitoma (Hemitoma) natlandi J. W. Durham, 1950]
Ref. Abbott, 1974 p 21

tricarinata (I. Born, 1778)
(5-4-1-2-1-1-2-12-1-14-0-0-0)
Three-ribbed Emarginula
Ref. Abbott & Dance, 1982 p 25 c

tricostata G. B. Sowerby, 1824
(5-4-1-2-1-1-2-12-1-15-0-0-0)
[=Hemitoma (Hemitoma) octoradiata (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 21

yatesii W. H. Dall, 1901
(5-4-1-2-1-1-2-12-1-16-0-0-0)
[=Hemitoma (Hemitoma) bella W. M. Gabb, 1865]
Ref. Abbott, 1974 p 21