The entire member seems a dense webbed bed of welded sinews; but cut into it, and you find that three distinct strata compose it:--upper, middle, and lower.
In the beavers or Castoridae these bones are in close contact at their lower ends, the tail is depressed, expanded and scaly, and the habits are aquatic. Beavers have webbed hind-feet, and the claw of the second hind-toe double.
It differs from the true crocodile principally in having the head broader and shorter, and the snout more obtuse; in having the fourth, enlarged tooth of the under jaw received, not into an external notch, but into a pit formed for it within the upper one; in wanting a jagged fringe which appears on the hind legs and feet of the crocodile; and in having the toes of the hind feet webbed not more than half way to the tips.
In some polyps the tentacles are webbed at the base, and it was supposed that a medusa was a polyp of this kind set free, the umbrella being a greatly developed web or membrane extending between the tentacles.
With his horizon all his own, yet he a poor man, born to be poor, with his inherited Irish poverty or poor life, his Adam's grandmother and boggy ways, not to rise in this world, he nor his posterity, till their wading webbed bog-trotting feet get talaria to their heels.
The genus Rana may be defined as firmisternal Ecaudata with cylindrical transverse processes to the sacral vertebra, teeth in the upper jaw and on the vomer, a protrusible tongue which is free and forked behind, a horizontal pupil and more or less webbed toes.
W, wax-yielding surface, covering true gland; s, septem, or carina; wh, webbed hairs.
Steganopodes.- Well flying, aquatic, nidicolous; with all the four toes webbed together.
Orifices open within a common cloaca; the tail is broad, horizontally flattened and naked; and the hind-feet are webbed (see Beaver).
It was surprising to see how serenely he sailed off with unruffled breast when he came to the surface, doing all the work with his webbed feet beneath.