Siebenrockiella crassicollis

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Malaysian Black Mud Turtle
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Family: Bataguridae
Genus: Siebenrockiella
Species: S. crassicollis
Binomial name
Siebenrockiella crassicollis
(Gray, 1831)

The Malaysian Black Mud Turtle, Siebenrockiella crassicollis, is a species of turtle in the Bataguridae family. It used to be monotypic within the genus Siebenrockiella until Diesmos et al (2006) showed based on genetic studis and morphology, that the rare and recently rediscovered Philippine Pond Turtle until that time known as Heosemys leytensis actually belongs into this genus i.e. Siebenrockiella leytensis provisionally also based into a new subgenus Panayanemys. Siebenrockiella crassicollis is known by a variety of vernacular names among hobbyists, such as Black (Mud) Terrapin. Most notably, the edges of its upper jaw extend downwards in the middle, hence the popular name Smiling Terrapin. It is found in Cambodia, Indonesia, Malaysia, Myanmar, Singapore, Thailand, and Vietnam. It is threatened by habitat loss.

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