Bythinella obtusa (I. Lea, 1841) accepted as Fontigens nickliniana (I. Lea, 1838) (source of synonymy)
Physa charpentieri Küster, 1850 accepted as Haitia acuta (Draparnaud, 1805) accepted as Physella acuta (Draparnaud, 1805) (source of synonymy)
Physa fragilis Mighels & C. B. Adams, 1842 accepted as Physella ancillaria (Say, 1825) accepted as Physella gyrina (Say, 1821) (source of synonymy)
Physa heterostropha (Say, 1817) accepted as Physella acuta (Draparnaud, 1805) (additional source)
Physa heterostropha var. alba Crandall, 1901 accepted as Haitia mexicana (R. A. Philippi, 1841) accepted as Physella acuta (Draparnaud, 1805) (original description)
Physa lata Tryon, 1865 accepted as Haitia acuta (Draparnaud, 1805) accepted as Physella acuta (Draparnaud, 1805) (source of synonymy)
Physa philippii Küster, 1844 accepted as Haitia acuta (Draparnaud, 1805) accepted as Physella acuta (Draparnaud, 1805) (source of synonymy)
Physa plicata De Kay, 1843 accepted as Haitia acuta (Draparnaud, 1805) accepted as Physella acuta (Draparnaud, 1805) (source of synonymy)
Physa primeana Tryon, 1865 accepted as Haitia acuta (Draparnaud, 1805) accepted as Physella acuta (Draparnaud, 1805) (source of synonymy)
Physa striata Menke, 1828 accepted as Haitia acuta (Draparnaud, 1805) accepted as Physella acuta (Draparnaud, 1805) (source of synonymy)