Genus Seguenzia (J. G. Jeffreys) Seguenza, 1876

(5-4-1-3-2-11-11-9-0-0-0-0-0)
Ref. Abbott, 1974 p 38
[listed also under Order: Mesogastropoda; Superfamily: SEGUENZIACEA;
Family: SEGUENZIIDAE]
Ref. Keen, 1971 p 363

caliana W. H. Dall, 1919
(5-4-1-3-2-11-11-9-0-1-0-0-0)
Ref. Abbott, 1974 p 38

carinata J. G. Jeffreys, 1876
(5-4-1-3-2-11-11-9-0-2-0-0-0)
Ref. Abbott, 1974 p 38

certoma W. H. Dall, 1919
(5-4-1-3-2-11-11-9-0-3-0-0-0)
Ref. Abbott, 1974 p 38

cervola W. H. Dall, 1919
(5-4-1-3-2-11-11-9-0-4-0-0-0)
Ref. Abbott, 1974 p 38

elegans J. G. Jeffreys, 1876
(5-4-1-3-2-11-11-9-0-5-0-0-0)
Ref. Abbott, 1974 p 38

eritima A. E. Verrill, 1884
(5-4-1-3-2-11-11-9-0-6-0-0-0)
Ref. Abbott, 1974 p 38 d

floridana W. H. Dall, 1927
(5-4-1-3-2-11-11-9-0-7-0-0-0)
Ref. Abbott, 1974 p 38

formosa J. G. Jeffreys, 1876
(5-4-1-3-2-11-11-9-0-8-0-0-0)
[=Seguenzia monocingulata monocingulata Seguenza 1876]
Ref. Abbott, 1974 p 38

giovia W. H. Dall, 1919
(5-4-1-3-2-11-11-9-0-9-0-0-0)
Ref. Abbott, 1974 p 38

ionica R. B. Watson, 1879
(5-4-1-3-2-11-11-9-0-10-0-0-0)
Ref. Abbott, 1974 p 38

monocingulata Seguenza, 1876
(5-4-1-3-2-11-11-9-0-11-0-0-0)
Ref. Abbott, 1974 p 38

monocingulata Seguenza, 1876 [T]
(5-4-1-3-2-11-11-9-0-11-1-0-0)
Syn. Seguenzia formosa J. G. Jeffreys, 1876
Ref. Abbott, 1974 p 38

nitida A. E. Verrill, 1884
(5-4-1-3-2-11-11-9-0-11-2-0-0)
Ref. Abbott, 1974 p 38

occidentalis W. H. Dall, 1908
(5-4-1-3-2-11-11-9-0-12-0-0-0)
Ref. Keen, 1971 p 363 bw

rushi W. H. Dall, 1927
(5-4-1-3-2-11-11-9-0-13-0-0-0)
Ref. Abbott, 1974 p 38

stephanica W. H. Dall, 1908
(5-4-1-3-2-11-11-9-0-14-0-0-0)
Ref. Keen, 1971 p 363 bw

trispinosa R. B. Watson, 1888
(5-4-1-3-2-11-11-9-0-15-0-0-0)
Ref. Abbott, 1974 p 38