What is "sculptured tortoise"

Sculpture \Sculp"ture\ (?; 135), v. t. [imp. & p. p. Sculptured; p. pr. & vb. n. Sculpturing.] To form with the chisel on, in, or from, wood, stone, or metal; to carve; to engrave.

Sculptured tortoise (Zo["o]l.), a common North American wood tortoise ( Glyptemys insculpta). The shell is marked with strong grooving and ridges which resemble sculptured figures.

n. wood turtle