Scientific name

Sternotherus odoratus

Other names: Kinosternon odoratum

The common musk turtle is a freshwater kinosternid. The Reptile Database retains the name Sternotherus odoratus; Kinosternon odoratum is a former combination. [1] Its small shell does not remove the need to plan a properly equipped aquarium.

Origin

Eastern and central North America, with Canadian and American populations; calm water and vegetated areas are important. [1][2]

  • Aquatic
  • Structured route
  • Long commitment

Documentary overview: identity checked; natural observations and captive practices attributed separately. Undocumented limits remain explicit.

At a glance

SIZE10–12,7 cm
ADW adult reference point [2].
LIFESPANSeveral decades
Captive record 54,8 years [2].
LIFESTYLEBottom and surface
Aquatic environment [2].

Adult size

Approximately 10–12,7 cm in the adults described by Animal Diversity Web; body length presented in the context of the shell, without the tail. [2]

Lifespan

ADW reports a captive record of 54,8 years, not a guaranteed average expectancy. A commitment of several decades must therefore be planned. [2]

Lifestyle

Aquatic, often active at dusk and seeking resources near the bottom. [2]

Housing

REHOMING SETUP

≈ 122 × 61 × 61 cm — RSPCA Brighton reference point, overall dimensions [3].

The RSPCA Brighton centre requires approximately 122 × 61 × 61 cm for its rehoming: setup dimensions, not mandatory water depth. [3]

Care parameters

WATER

24–27 °C — Active keeping, clinical source [4].

PLATFORM

29–32 °C — Basking reference point [4].

Humidity

Tested water — No air percentage proposed; dry access necessary [4].

Water, active keeping

24–27 °C according to Tree of Life Exotics [4] Measure in the water with a probe independent of the heater setting.

Basking platform

29–32 °C according to the same clinic [4] The turtle must be able to leave the water completely and reach a less-warm zone.

Water quality

Ammonia and nitrites: target 0 in the clinical profile [4] Clarity does not replace testing.

Water — the guide’s night-time limit

RVC gives water not falling below 20 °C at night in its routine keeping guide. [5] Scope: captive water; RVC Common Musk Turtle profile. A reported limit is neither a target nor an established physiological threshold.

Feeding

VARIED AQUATIC MENU

Formulated food and invertebrates, with plants according to consumption; meals in water [3].

Recognise without disturbing

The two pale lines on each side of the head and the more pronounced keel in juveniles are described by the RSPCA. [3] To retain usable identification, photograph the top and sides during a necessary check, with a scale. A colour difference over the years is insufficient to rename the animal or assign it a new variety.

Adult size, lifespan and lifestyle

Approximately 10–12,7 cm in the adults described by Animal Diversity Web; body length presented in the context of the shell, without the tail. [2]

ADW reports a captive record of 54,8 years, not a guaranteed average expectancy. A commitment of several decades must therefore be planned. [2]

Aquatic, often active at dusk and seeking resources near the bottom. [2]

Organising movement in the water

ADW describes a turtle that walks extensively along the bottom but can also climb and bask out of water. [2] The setup must therefore be read as a route: shelter, rest near the surface and a dry exit linked without traps. Observing several complete movements after a change is more informative than a photograph of the decoration. Heavy elements must remain stable when the animal pushes them.

Filtration and cleaning

The RSPCA recommends continuous filtration and not replacing all filter media together, to preserve their bacterial population. [3] Recording the date and actual content of each intervention links a water change to variation in test results. A running filter does not, by itself, establish correct operation: also check visible flow and absence of obstruction.

Heat and light: two measurements

The clinic distinguishes water temperature from dry-site temperature and provides for UVB. [4] The number displayed on a heater does not describe the platform. Recording both locations, lamp model and actual distance makes checks repeatable. Basking-point temperature must not be targeted everywhere: a choice between several conditions is part of the setup.

Feeding without turning the water into a food store

The Brighton centre uses a varied menu including formulated foods, invertebrates and a plant component; meals are offered in water. [3] Distributing selected foods across the week avoids confusing diversity with accumulation in one meal. Removing what remains accessible after feeding also helps establish what was actually consumed rather than simply disappearing behind the decor.

Breeding and season

Eggs are laid on land, and ADW describes an effect of incubation temperature on sex. [2] This biological finding is not a protocol to reproduce with a domestic thermostat. A breeding project first requires an appropriate laying site and a plan for juveniles. Searching for a laying place must be observed even without a commercial project.

Behaviour and precautions

Musk secretion and biting can accompany a stressful situation; Tree of Life recommends limiting handling. [4] Daily observation can occur through the glass, before opening and during meals. A lasting swimming change, difficulty returning to the surface or unusual food refusal warrants professional advice, without choosing treatment from a single image.

Building comparable records

Keep shell length, weight obtained under similar conditions, meals and water measurements in one history. An isolated measurement does not show whether growth is steady. For adoption, ask for documented captive provenance and previous habits; do not take an animal from the wild or release one that becomes inconvenient. The profile does not constitute verification of local keeping obligations.

Checklist

  • Test the route to the surface.
  • Check water and platform separately.
  • Prepare filter maintenance.

Observations to record

  • Shell
  • Meals
  • Water
  • Behaviour

The app provides individual animal records. Check which features are available for your animal in the released version.

Related guides

Original guides in French

Sources

Document-based overview; not a substitute for veterinary advice.

  1. The Reptile Database — Sternotherus odoratus
    Source accessed
  2. University of Michigan, Animal Diversity Web — Sternotherus odoratus
    Source accessed
  3. RSPCA Brighton — Musk Turtle Rehoming Package
    Source accessed
  4. Tree of Life Exotic Pet Medical Center — Common Musk Turtle Care
    Source accessed
  5. Musk turtle care — reviewed December 2024
    Source accessed