OWEN, Richard. (1846). Lectures on the comparative anatomy and physiology of the vertebrate animals, delivered at the Royal College of Surgeons of England, in 1844 and 1846. Part 1 : Fishes. Londres, Royaume-Uni : Longman, Brown, Green and Longmans. http://dx.doi.org/10.5962/bhl.title.13539. Cf. http://www.biodiversitylibrary.org/item/48186#page/79/mode/1up.