|Green Turtle (Chelonia mydas)||Hawksbill Turtle (Eretmochelys imbricata)||Leatherback Turtle (Dermochelys coriacea)|
|Asian Softshell Turtle (Amyda cartilaginea)||Forest Softshell Turtle (Dogania subplana)||Chinese Softshell Turtle (Pelodiscus sinensis) - introduced|
|Malayan Box Terrapin (Cuora amboinensis)||Asian Leaf Terrapin (Cyclemys dentata)||Spiny Terrapin (Heosemys spinosa)|
|Malayan Flat-shelled Terrapin (Notochelys platynota)||Black Marsh Terrapin (Siebenrockiella crassicollis)|
Some Introduced Turtles
|Common Snapping Turtle (Chelydra serpentina)||North Antillean Slider (Trachemys decussata)||Red-eared Slider (Trachemys scripta)|
|Razorback Musk Turtle (Sternotherus carinatum)||Indian Star Tortoise (Geochelone elegans)|
Softshell Turtles (Family Trionychidae)Softshell Turtles are so called due to the general lack of scales on their carapace. They have a nose like a pig snout. There are two native species - Asian and Forest Softshell Turtles; and an introduced species - the Chinese Softshell Turtle.
The Asian Softshell Turtle (Amyda cartilaginea) is also known as the Malayan Softshell Turtle. It is a forest species and can sometimes be found in the Central Catchment reservoirs. It is distinguished from the other by having a row of tubercles on the carapace just behind the neck. Its young has prominent yellow spots, but these tend to go away as it reaches adulthood.
The Forest Softshell Turtle (Dogania subplana) can be distinguished from the rest by the straight sides of the carapace and a protruding line running along the centre of the carapace. Its young has eyespots on the carapace, but these tend to go away as it reaches adulthood. This species is also much smaller than the Asian Softshell Turtle. It can be found in forest streams.
The Chinese Softshell Turtle (Pelodiscus sinensis) is not native to Singapore. It is here due to the turtle soup industry. The softshell turtles found outside our forests are most likely this species.
Native TerrapinsThere are 5 native species in Singapore.
Malayan Box Terrapin (Cuora amboinensis) is a native terrapin has a distinctive plastron. A hinge allows the terrapin to shut its head and legs tightly in a protective shell. The carapace (left) is dark, while the plastron (right) is pale and mottled.
Asian Leaf Terrapin (Cyclemys dentata) has a distinct vertebral keel and spiny rear carapace edge.
Spiny Terrapin (Heosemys spinosa), also called Spiny Hill Terrapin, this uncommon forest terrapin is native to Singapore. It is so called due to the spiny edge of the carapace, which is more apparent in young specimens.
Malayan Flat-shelled Terrapin (Notochelys platynota) has a flat carapace top, hence its name.
Black Marsh Terrapin (Siebenrockiella crassicollis) has a jaw pattern that gives it a smiling face. The female has pale patches on the face, while the male lacks it.
Introduced TurtlesA number of alien turtle species has been released in the name of religious righteousness. The most common is the Red-eared Slider, which is a commonly released alien into ponds, canals and even our forest streams. Another non-native slider one may find in Singapore is the North Antillean Slider, which lacks the red "ears". Here is a non-exhaustive list:
Chinese Stripe-necked Turtle (Ocadia sinensis)
Malayan Giant Terrapin (Orlitia borneensis)
Giant Leaf Terrapin (Heosemys grandis)
Asian Forest Tortoise (Manouria emys)
Common Snapping Turtle (Chelydra serpentina)
North Antillean Slider (Trachemys decussata)
Red-eared Slider (Trachemys scripta)
Razorback Musk Turtle (Sternotherus carinatum)
Fly River Turtle (Carettochelys insculpta)
Indian Star Tortoise (Geochelone elegans)
Another one is the Fly River or Pignose Turtle (Carettochelys insculpta) sighted at Bedok Reservoir in 2008 by Jeremy Lee.