He worked with Cuvier on the 22-volume "Histoire Naturelle des Poissons" (Natural History of Fish) (1828–1848), carrying on alone after Cuvier died in 1832.
Traballou con Cuvier na monumental obra en vinte e dous volumes Histoire naturelle des poissons (1828-1848), e proseguiu en solitario esta obra despois da morte de Cuvier en 1832.