Ontogenetic change and sexual dimorphism in shape, color, and markings of head and neck. Females retain much of the juvenal pattern of spots and blotches. In males, the top and sides of the head become greenish or bluish and markings are obscured. FIGS. 1 and 3. Lateral and dorsal views of hatchling (× 3½); FIGS. 2 and 4. Lateral and dorsal views of juvenile (× 2); FIGS. 5 and 6. Adult female (× 1); FIGS. 7 and 8. Adult male (× 1) showing relatively wider and more truncated snout in this sex. [Illustration: PLATE 26] FIG. 1. A foraging station next to a rock fence at the Damm Farm (June 28, 1958). The box turtle in foreground was in the act of tearing apart a pile of partially dried cow dung to obtain dung insects. FIG. 2. A depression (× ½) made by a foraging box turtle in a pile of partially dried cow dung (June 28, 1958). Similar "sign" of box turtles was found in cow dung everywhere on the pasture at the Damm Farm. [Illustration: PLATE 27] FIG. 1. Thread-laying device ("trailer") taped to the carapace of an adult female _T. o. ornata_. The squares of tape on the sides are to keep the bent-over ends of the wire axle from catching on vegetation (× ½). FIG. 2. A dermal pocket ("cyst") removed from an adult _T. ornata_ and cut open to show two larval bot flies (_Sarcophaga cistudinis_) (× 2, May 15, 1956). [Illustration: PLATE 28] FIGS. 1-3. Stages in courtship of _T. o. ornata_: male pursuing female and biting her shell; male lunging at female in attempt to mount; and, male just after mounting female (× ¼). FIG. 4. _T. o. ornata_ smelling food (× 1). FIG. 5. _T. o. ornata_ in attitude of alertness after detecting intruder (× 3/8). FIG. 6. Tracks of _T. o. ornata_ in muddy ravine (× 1/8) (June 5, 1956). [Illustration: PLATE 29] FIG. 1. A small, nearly-healed, injury on the carapace of an adult _T. o. ornata_ (× 2). Note regenerated epidermis at bottom of depression and two pieces of dead bone ("splinter scars") at upper right margin of depression. FIG. 2. Injured area on the carapace of a juvenal _T. o. ornata_ (× 3) with dead bone removed and laid to the right, exposing regenerating epidermis in its early stages. FIG. 3. Anterior edge of carapace (held away with forceps) of specimen of _T. carolina_ (KU 51461, Gulf Co., Florida) that had been badly burned (× 8/9). Nearly all the scutes of the shell had fallen off and large pieces of dead bone could be pulled away, exposing a gnarled mass of regenerating bone and epidermis. FIG. 4. A fracture that has healed and joined the tibia (upper bone) to the fibula in a specimen of _T. o. ornata_ (KU 1877, × 3½). [Illustration: PLATE 30]