Tortoise-

a. It is usually larger in size.

b. Oval carapace is present.

c. Head can be completely withdrawn into the shell.

d. Habitat - Semiterrestrial and fresh water

e. Forelimbs and hindlimbs are not modified into paddles.



Turtle-

a. It is comparatively smaller in size.

b. Heart-shaped carapace is present.

c. Head can be partially withdrawn into the shell. d. Habitat - marine

e. Forelimbs and hindlimbs are modified into paddles.