SUTURES (in the skull). — The lines of junction of the bones of which the skull is composed.

TARSUS (pl. TARSI). — The jointed feet of articulate animals, such as insects.

TELEOSTEAN FISHES. — Fishes of the kind familiar to us in the present day, having the skeleton usually completely ossified and the scales horny.

TENTACULA or TENTACLES. — Delicate fleshy organs of prehension or touch possessed by many of the lower animals.

TERTIARY. — The latest geological epoch, immediately preceding the establishment of the present order of things.

TRACHEA. — The windpipe or passage for the admission of air to the lungs.