Genus Tylodina C. S. Rafinesque, 1819

(5-4-1-1-1-3-0-4-0-0-0-0-0)
[see under Superfamily: TYLODINACEA J. E. Gray, 1847;
Family: TYLODINIDAE J. E. Gray, 1847]
Ref. Abbott, 1974 p 346
[see under Superfamily: UMBRACULACEA;
Family: UMBRACULIDAE]
Ref. Keen, 1971 p 812

excentrica N. Tiberi, 1857
(5-4-1-1-1-3-0-4-0-1)
[=Addisonia lateralis (E. Requien, 1848)]
Ref. Abbott, 1974 p 35

fungina W. M. Gabb, 1865
(5-4-1-1-1-3-0-4-0-2)
Ref. Keen, 1971 p 812 d