T. vermicularis, [594]

Typhlosaurus, [564]

Typhlotriton, [94], [96], [102];

T. spelaeus, [103]

Uraeotyphlus, [86], [89]

Ureter, [48] f., [49]

Urino-genital organs, [48] f., [49]

Urocordylus, [81], [288]

Urodaeum of Chelonia, [330]

Urodela, [94] f.;