Wildlife Clinic

Species

Coastal plain cooter

Pseudemys floridana

A large, plant-eating basking turtle of southern Georgia's ponds, lakes and slow rivers.

A coastal plain cooter basking at the water's edge among green plants, its dark head striped with yellow.

Photo Tom Field (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
Shell usually 23 to 33 cm long
Habitat
Ponds, lakes, swamps, spring runs and slow rivers
Diet
Mostly water plants and algae
In Georgia
The Coastal Plain, south of the fall line
Rabies vector
No

Identification

Key marks
Dark, high shell with light lines; plain yellow underside; yellow stripes on head and neck
Told apart from
River cooter, whose underside has dark markings along the seams
Told apart from
Florida red-bellied cooter, which has a reddish shell and arrow-shaped mark on the snout
Where to look
Basking on logs in quiet water

Behaviour

Coastal plain cooters bask for long periods and graze beds of water plants. Females often dig a main nest with one or two smaller "satellite" holes beside it, and may drop some eggs in those.

Why they matter

As grazers they help keep water plants in balance, and their eggs and young feed many animals along the shore.

Reproduction and lifecycle

Nest — A main nest, often with smaller satellite holes, in sandy soil
Eggs — Usually 10 to 30
Incubation — About 80 to 150 days
Hatchlings — Some overwinter in the nest
Maturity — At several years
Lifespan — Several decades

Living around people

  • Help a cooter across a road in the direction it was heading.
  • Shoreline plants and fallen logs give cooters food and places to bask.

Misconceptions

  • Extra holes beside a nest mean a predator dug it up. Female cooters often dig satellite holes themselves.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesBasking on warm daysBasking on warm daysActiveCourtshipNestingNestingFeedingHatchingHatchlings emergeFeedingSlowing downMostly inactive

Where it lives

Recorded in 6 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

Answer a few questions and you will get a specific answer for what you are looking at.

I found an animal