Fauna
Reptile

Razor-backed Musk Turtle

Sternotherus carinatus

Also known as Razorback Musk Turtle

Razor-backed musk turtles spend nearly their entire lives underwater, prowling sluggish river bottoms, bayous, and swamps where fallen logs provide submerged cover. Their exceptionally steep, roof-shaped carapace sheds silt and deflects the jaws of potential predators while they hunt for hard-shelled prey. When threatened, glands along the bridge secrete a pungent, foul-smelling musk that deters larger predators from swallowing them.

AquaticFreshwaterCarnivorous
Razor-backed Musk Turtle reference
(c) Photographer: LA Dawson, some rights reserved (CC BY-SA) · cc-by-sa
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & preyFreshwater Snails, River Crayfish, Aquatic Insects
Predators
  • American Alligator
  • Alligator Snapping Turtle
  • Northern Raccoon
ThreatsWaterway pollution, river channelization, and overcollection for the pet trade
HabitatsSlow-moving rivers, bayous, oxbow lakes, and cypress swamps
Life span20–30 years in the wild
Classification
  1. FamilyKinosternidae
  2. GenusSternotherus
  3. SpeciesSternotherus carinatus
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Powerful crushing jaws can deliver a painful defensive bite; observe underwater or from banks without handling.
Why it is dangerous
Equipped with strong, broad jaws evolved to crush mollusk shells, which can easily break human skin or crush fingernails.
How to recognize a risky encounter
Look for a dramatically steep, tent-like carapace with a sharp central vertebral ridge and dark spotting on the head.
What to do
Allow the turtle to pass undisturbed, or pick it up securely from the extreme rear of the shell if road rescue is needed.
Responsible observation
  • River Scanning: Look for their sharp, ridged shells resting among submerged branches in clear, shallow streams.
  • Basking Spot: Scan partially submerged tree trunks on sunny mornings where adults occasionally climb out to warm up.
  • Handling Precaution: Keep fingers clear if relocating one off a road, as their long necks reach far sideways.
Related species
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