Genus Addisonia W. H. Dall, 1882

(5-4-1-1-1-3-0-1-0-0-0-0-0)
Ref. Abbott, 1974 p 35
Lindner, 1977 p 35
[see also under Superfamily: LEPETELLOIDEA;
Family: ADDISONIIDAE]

lateralis (E. Requien, 1848)
(5-4-1-1-1-3-0-1-0-1)
Syn. Tylodina excentrica N. Tiberi, 1857
Ref. Abbott, 1974 p 35

paradoxa W. H. Dall, 1882 [T]
(5-4-1-1-1-3-0-1-0-2)
Ref. Abbott, 1974 p 35 d