Literature
- Cuvier, G. 1817b. Le règne animal distribué d'après son orginisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée, 4 vol. Paris. Poissons, 2: 104-351.
- Fleming, J. 1828. A history of British animals exhibiting the descriptive characters and systematical arrangements of the genera and species of quadrupeds, birds, reptiles, fishes, mollusca and radiata of the U.K.; including the indigenous, extirpated and extinct kinds, together with periodical and occasional visitants. EdinburgLondon, xxiii + 565 pp. (2nd ed., 1842, same pag.).
- Linnaeus, C. 1758. Systema Naturae, ed. X, vol. 1, 824 pp. Nantes & Pisces: pp. 230-338. (Reprint, 1956, London.).