H.  Krebs, The West-Indian marine shells, with some remarks. A manuscript printed for circulation betweenn collectors, by H. Krebs, 1864. A republication by W.J. Clench, C. G. Aguayo and R.D. Turner, with remarks and a brief account of the life of H. Krebs. [Reprint. Habana, Cuba: Museo Poey, Universidad de la Habana, Submitted, p. ??

A. A.  Gould, Otia Conchologia: descriptions of shells and mollusks; from 1839 to 1862. Boston: Gould and Lincoln, 1862, p. [4]+256.

P.  Fischer, Manuel de cochyliologie et de paléontologie conchyliologique ou histoire naturelle des mollusques vivants et fossiles suivi d'un appendice sur les brachiopodes, vol. 2, 2 vol. Paris: F. Savy, 1887, p. xxiv+1369.

A. A.  Gould, Otia Conchologia: descriptions of shells and mollusks; from 1839 to 1862. Boston: Gould and Lincoln, 1862, p. [4]+256.

H.  Krebs, The West-Indian marine shells, with some remarks. A manuscript printed for circulation betweenn collectors, by H. Krebs, 1864. A republication by W.J. Clench, C. G. Aguayo and R.D. Turner, with remarks and a brief account of the life of H. Krebs. [Reprint. Habana, Cuba: Museo Poey, Universidad de la Habana, 1948, p. ??