Sinônimo: Iselicaanomala (C. B. Adams, 1850); Actaeon globosus H. C. Lea, 1843; Fossarus anomala (C. B. Adams, 1850); Isapis anomala (C. B. Adams, 1850); Narica anomala C. B. Adams, 1850; Dolium octocostatum Emmons, 1858; Isapis caloosaensis Dall, 1890
Descrição original: Lea, H. C. (1843). Abstract of a paper read before the American Philosophical Society, May 29th, 1843, entitled “Descriptions of some new fossil shells, from the Tertiary of Petersburg, Virginia”. H.C. Lea, Philadelphia. 12 pp. [Published before 18 October 1843. A separate and advanced publication of H.C. Lea 1846, with the same title].