hypapophyses

In the hare these processes are largely developed; the metapophyses or larger projections on each side of the central spinous process are very long, projecting upwards and forwards; the anapophyses or smaller projection in rear of the above are small; and the hypapophyses or downward processes are remarkably long, single and compressed; according to Professor Flower these latter are not found in the

Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale 1870

The development of the arch, formed by the hypapophyses of the third and fourth dorsal vertebræ, also varies considerably, as does the size of the hypapophysis of the fifth vertebra.

The Variation of Animals and Plants Under Domestication, Vol. I. Charles Darwin 1845

The hypapophysis of the second dorsal vertebra varies much in development; being sometimes (as in several, but {166} not all tumblers) nearly as prominent as that of the third dorsal vertebra; and the two hypapophyses together tend to form an ossified arch.

The Variation of Animals and Plants Under Domestication, Vol. I. Charles Darwin 1845