[135] Mémoires sur les Animaux sans Vertèbres, Part I., p. 10, Paris, 1816.
[136] Ann. Sci. Nat., (1), i., pp. 97-135, 416-432, 1824.
[137] Isis, p. 456, 1820 (2).
[138] Cuvier, Mém. Acad. Sci., iv., p. cclxx., 1824.
[139] Acad. Sci. 18th Oct. 1831. Extract in Ann. Sci. Nat., xxiv., pp. 254-60, 1831.
[140] His views were more fully elaborated in his Mémoire sur la conformité organique dans l'échelle animale, Montpellier, 1832.