Morelet, A. 1851. Testacea Novissima Insulæ Cubanæ et Americæ Centralis 2. Available electronically.
Morelet, 1851. Test. Nov. 2: 26.

Morelet, 1851. Test. Nov. 2: 24.
Type(s): HOLOTYPE (MONOTYPY) BMNH_1965146, rivulos prope vicum Palenqueanum prov. Chiapa[Mexico].

Morelet, 1851. Test. Nov. 2: 24.
Type(s): LECTOTYPE [AS HOLOTYPE] BMNH_93-2-4-2035 (by R.I. Johnson, 1971: 82), flumen Usumacinta, Peten, Guatemala.
Morelet, 1851. Test. Nov. 2: 25.
(homonym of Cyclas maculata Anton, 1837; renamed Sphaerium (Limosina) singleyi Pilsbry, 1889)

Morelet, 1851. Test. Nov. 2: 25.
Type(s): LECTOTYPE [AS HOLOTYPE] BMNH_93-2-4-2026 (by R.I. Johnson, 1971: 88), Rio Usumacinta, Guatemala.

Morelet, 1851. Test. Nov. 2: 24.
Type(s): LECTOTYPE [AS HOLOTYPE] BMNH_93-2-4-2025 (by R.I. Johnson, 1971: 91), pres du Rio Usumacinta, Dept. Peten, Guatemala.

Morelet, 1851. Test. Nov. 2: 25.
Type(s): LECTOTYPE [AS HOLOTYPE] BMNH_93-2-4-2033 (by R.I. Johnson, 1971: 81), Rio Usumacinta, Tabasco.
Morelet, 1851. Test. Nov. 2: 26.