(Chapter 13) Footnote 2:

Neither of these figures illustrates a typically human hyoid bone – a notable departure for a book which stresses human as opposed to animal anatomy. The left hyoid bone shown above (Fig. One) has a canine feature in the chain of narrow ossicles (K, L, M, N) that extend in the dog to the styloid bone (in the human, this connection is made by the stylohyoid ligament). The right hyoid bone (Fig. Two) represents the posterior aspect of the same bone with L, M, N removed. Its lesser horns (I, K) appear nearly the same length as the greater horns (E, F), whereas in humans the lesser horns have only a fraction of the mass and length of the greater, and are altogether different in shape. Vesalius is described as using “the larynx of an ox and of some other animals” in a 1540 anatomy lecture at Bologna “because, he said, in the hanged [human] subjects we cannot see the larynxes, for they are destroyed by the noose, but they are however quite different [in man and in animals].” ( Eriksson 1959, p. 285). The illustrations in this chapter appear to blend human and animal anatomy.