Umbrina, [663];

U. cirrhosa, [361]

Undina, [481], [161];

U. gulo, [480]

Unio, Rhodeus in, [584]

Upeneichthys, [665]

Upeneoides, [665]

Upeneus, [665]

Uranoscopidae, [706], [703]

Uranoscopus, [706];