Chelon

Chelon (from the Greek χελώνη, chelōnē, meaning "tortoise") refers primarily to:

• A genus of grey mullets: Chelon is a genus of ray-finned fish in the family Mugilidae. These fish are commonly found in coastal waters of the Atlantic, Indian, and Pacific Oceans, as well as estuaries and rivers. Several species are commercially important for food. Key characteristics of Chelon mullets include a streamlined body, small teeth (or none at all), and the ability to tolerate a wide range of salinity.

• Relating to turtles and tortoises (the order Testudines): Less frequently, "chelon" or "chelonia" can be used in a broader, informal sense relating to the order Testudines, which includes all turtles, tortoises, and terrapins. This usage stems from the Greek root meaning "tortoise". For example, "chelonian" might describe a feature pertaining to the shell of a turtle. However, "chelon" is not a formal taxonomic rank equivalent to Testudines.

It is important to note that when referring to turtles and tortoises in a scientific context, the more accurate and widely accepted term is "Testudines" or "testudinate". The term "chelon" is much more commonly associated with the genus of grey mullets.