
Source: Wikimedia Commons
Sternotherus carinatus
One of the larger musk turtles, from the southern United States. A single sharp keel runs down the centre of the carapace, giving the species both its English and Japanese names. It is almost entirely aquatic.
Sternotherus carinatus is a turtle of the family Kinosternidae from the southern United States. It reaches about 15 cm in straight carapace length, making it one of the largest musk turtles. The carapace is brown with black markings at the edges of each scute and carries a single sharp keel down the midline; this raised ridge gives the species its name, is most pronounced in juveniles and tends to flatten with age. The body is grey-brown with black spotting and the head is distinctly bulbous, with a long neck, short legs and a sharp beak. The plastron is small with a single anterior hinge, there is no gular scute, and barbels are present only on the chin. It defends itself with secretions from its musk glands, though this species produces less odour than its relatives, especially in captivity. It is almost entirely aquatic, spending most of its time swimming in slow, heavily vegetated water.
Source: Wikipedia (CC BY-SA 4.0)
The Razorback Musk Turtle lives 20-30 years in the wild, up to 50 years in captivity.
The Razorback Musk Turtle grows to About 15cm straight carapace length.
The ideal temperature for the Razorback Musk Turtle is 24〜27℃.
Origin
The southern United States, in south-eastern Oklahoma, southern and eastern Texas, southern Arkansas, Louisiana, south-central Mississippi, extreme south-western Alabama and Florida, in slow, heavily vegetated creeks, ponds and swamps
Sources: TurtleHolic: Razorback Musk Turtle Profile / Reptiles Magazine: Mud And Musk Turtles / Wikipedia (English)
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Sternotherus carinatus (Gray, 1856)
Synonyms: Aromochelys carinata Gray, 1856, Goniochelys triquetra Agassiz, 1857, Kinosternon carinatum (Gray, 1856)
Authority databases: GBIF · Reptile Database
Nomenclature follows global taxonomic authority databases.
The genus Sternotherus (Sternotherus spp.) has been listed on Appendix II since 23 February 2023 (adopted at CoP19 in 2022, Species+). As an Appendix II species, no registration certificate for internationally rare wild fauna and flora is required. This species is not included in the designated animals listed in the Schedule of the Order for Enforcement of the Law Concerning the Protection and Management of Animals.
Sources: CITES Appendices (Sternotherus spp., Appendix II, effective 23 February 2023) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
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Lifespan
20-30 years in the wild, up to 50 years in captivity
Size
About 15cm straight carapace length
Temperature
24〜27℃、29〜32℃
Humidity
40〜70%
Turtle pellets, insects such as crickets, and small feeder fish
Keep water at 24-27 C, air at 24-28 C and the basking spot at 29-32 C. For mud and musk turtles generally, water of 22-27 C and basking of 29-34 C suit well. Provide vitamin D and calcium supplements alongside full-spectrum lighting.
It is a strong swimmer, so allow about 38 litres of water per 2.5 cm of shell. Adults at 10-15 cm suit a 40-gallon tank, roughly 150 litres, or larger. Give real depth as well, since it likes to swim up and down. It is used to heavily vegetated water, so add plants and hides, and run a powerful filter to keep the water clean.
It is carnivorous in the wild. In captivity use turtle pellets as the staple with insects such as crickets alongside. Small feeder fish encourage exercise. Watch for obesity from overfeeding.
A shy species that does not bask much in the wild, though a basking spot where it can leave the water should always be provided. It can live with other turtles such as red-eared sliders, painted turtles and map turtles, but watch for rivalries when first introduced. Move your hand slowly when picking one up; they do occasionally bite.
The genus Sternotherus was listed on CITES Appendix II at CoP19 in 2022, effective 23 February 2023. Appendix II means no Japanese registration certificate is required, but international trade needs an export permit from the range state. Individuals have lived 50 years in captivity, so plan the setup for the long term.
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Razorback Musk Turtle is 24〜27℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Razorback Musk Turtle is 20-30 years in the wild, up to 50 years in captivity. With proper care and nutrition, they can live a long and healthy life.
Razorback Musk Turtle typically reaches About 15cm straight carapace length as an adult. Size may vary depending on care conditions and individual genetics.
Razorback Musk Turtle feeds on: Turtle pellets, insects such as crickets, and small feeder fish. Aim for a balanced diet with appropriate feeding frequency.
The price of Razorback Musk Turtle varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026