Cuvier, G.; Carpenter, W.B.; Westwood, J.O. 1884. The animal kingdom: arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy. New edition. London, W.H. Allen & Co.
Carpenter, W.B. 1848. Zoology: a systematic account of the general structure, habits, instincts, and uses of the principal families of the animal kingdom. London, Wm.S.Orr and Co. vol. 1.






