Turtle or Tortoise?

What is the difference between a turtle, tortoise, or a terrapin? There are common-use differences between them, and a specific scientific difference.

Science tells us that all shelled reptiles are Chelonians, most commonly called turtles. Within the order of turtles, one family, Testudinidae, are the ‘true tortoises’- turtles that live, hunt, mate, and hide on land and usually have heavy shells.

Common usage varies by location. Here is a chart of the basic breakdowns by types of turtles and what they are called in various areas:

United States Europe, Australia
Completely terrestrial (tortoises) tortoise tortoise
Mostly terrestrial (box turtles) turtle tortoise
Semi-aquatic (pond turtles, sliders) turtle terrapin
Fully aquatic (fresh water)
(snappers, softshells)
turtle turtle
Fully aquatic (sea water) turtle or sea turtle turtle or sea turtle

Special cases: “Terrapin” – brackish water species. Also used in the southern states for edible turtles. “Tortoise” is also used for native fresh-water species in Australia.

So… ALL turtles, terrapins, and turtles can be safely and accurately called “turtles”, although “Chelonian” is more accurate. When someone says your beloved tortoise is a “turtle”, they are technically correct.

Leave a Reply

Your email address will not be published. Required fields are marked *

*