CHAP. 83.—THE BLADDER: ANIMALS WHICH HAVE NO BLADDER.
Below the paunch, on the anterior side, lies the bladder,
which is never found in any oviparous animal, with the exception of the tortoise, nor yet in any animal that has not
lungs with blood, or in any one that is destitute of feet.
Between it and the paunch are certain arteries, which extend
to the pubes, and are known as the " ilia." In the bladder of
the wolf there is found a small stone, which is called " syrites;"
and in the bladders of some persons calculi are sometimes
found, which produce most excruciating pains; small hairs,
like bristles, are also occasionally found in the bladder. This
organ consists of a membrane, which, when once wounded, does
cicatrize, just like those in which the brain and the heart
are enveloped: there are many kinds of membranes, in fact.