Sinônimos: NaticapusillaSay, 1822; N. sphaerula H. C. Lea, 1843
Descrição original: Say, T. (1822). An account of some of the marine shells of the United States. Journal of the Academy of Natural Sciences, Philadelphia. 2(1): 221-248; 2(2): 257-276, 302-325., available online at http://biodiversitylibrary.org/page/36831411page(s): 32