Physa ancillaria Say, 1825 accepted as Physella ancillaria (Say, 1825) accepted as Physella gyrina (Say, 1821) (source of synonymy)
Physa ancillaria crassa B. Walker, 1901 accepted as Physella acuta (Draparnaud, 1805) (basis of record)
Physa ancillaria magnalacustris B. Walker, 1901 accepted as Physella magnalacustris (B. Walker, 1901) accepted as Physella gyrina (Say, 1821) (basis of record)
Physa ancillaria vinosa A. Gould, 1847 accepted as Physella vinosa (A. Gould, 1847) (basis of record)
Physa gyrina Say, 1821 accepted as Physella gyrina (Say, 1821) (basis of record)
Physa gyrina albofilata Sampson, 1894 accepted as Physa gyrina Say, 1821 accepted as Physella gyrina (Say, 1821) (basis of record)
Physa gyrina hildrethiana I. Lea, 1841 accepted as Physa gyrina Say, 1821 accepted as Physella gyrina (Say, 1821) (basis of record)
Physa gyrina oleacea Tryon, 1866 accepted as Physella gyrina (Say, 1821) (basis of record)
Physa lordi Baird, 1863 accepted as Physella lordi (Baird, 1863) (basis of record)
Physa parkeri Currier, 1881 accepted as Physella parkeri (Currier, 1881) accepted as Physella gyrina (Say, 1821) (basis of record)
Physa rhomboidea Crandall, 1901 accepted as Haitia mexicana (R. A. Philippi, 1841) accepted as Physella acuta (Draparnaud, 1805) (original description)
Physa sayi Blainville, 1826 accepted as Physella acuta (Draparnaud, 1805) (additional source)
Physa vinosa A. Gould, 1847 accepted as Physella vinosa (A. Gould, 1847) (basis of record)