Asian narrow-headed softshell turtleThe Asian narrow-headed softshell turtle is a large species of softshell turtle in the family Trionychidae. The species is endemic to Southeast Asia.Common namesChitra chitra is also known commonly as Nutaphand's narrowhead softshell. It is a name given in honor of Wirot Nutaphand, a Thai herpetologist who did taxonomy.DescriptionC. chitra can reach a straight carapace length of 4.9 ft.Geographic rangeC. chitra is found in Indonesia, Malaysia, and Thailand.HabitatC. chitra inhabits freshwater rivers and their tributaries.ReproductionC. chitra is oviparous. Nutaphand reported that a large female laid over 100 eggs.SubspeciesTwo subspecies are recognized as being valid, including the nominotypical subspecies.Chitra chitra chitra – Malaysia, ThailandChitra chitra javanensis – Java, SumatraIn captivityThe largest C. chitra in the world was a female named Sumo. She was a pet in the possession of Kittipong Jaruthanin, a Thai fish explorer and collector. She died in September 2023, aged more than 40 years.