
Source: Wikimedia Commons
Graptemys pseudogeographica
A map turtle named for the fine light lines on its carapace, which resemble contour lines on a map. It lives in the Mississippi drainage and is told from its congeners by a white or grey iris without a dark bar. The carapace reaches 25 cm.
The Mississippi map turtle is an emydid of the genus Graptemys; the name in the trade refers to the subspecies Graptemys pseudogeographica kohnii. The carapace reaches 25 cm, females being larger, and the rear marginal scutes are serrated. Fine white to cream lines mark the head, with a blotch running from behind the eye downwards, and the iris is white or grey - alone in the genus, this subspecies has no dark bar across the iris. Juveniles have spine-like projections on the vertebral scutes that smooth out with age. Unusually for a map turtle it also lives in still water; it is strongly aquatic but climbs onto logs and rocks to bask for long periods, sliding into the water when startled. Omnivorous with a carnivorous bias, it eats a greater proportion of molluscs where no congener specialises in them.
Source: Wikipedia (CC BY-SA 4.0)
The Mississippi Map Turtle lives Maximum recorded longevity in captivity is 35 years.
The Mississippi Map Turtle grows to Carapace up to 25cm, with females larger than males.
Origin
The lower Mississippi drainage of the United States, mainly in large rivers and in lakes near them
Lifespan
Maximum recorded longevity in captivity is 35 years
Size
Carapace up to 25cm, with females larger than males
Sources: Reptiles Magazine: Map Turtle Care and Information / Wikipedia (Japanese): Mississippi map turtle / Wikipedia (English): False map turtle / Reptile Database / AnAge: The Animal Ageing and Longevity Database
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.
Primary sources
Accepted name: Graptemys pseudogeographica (Gray, 1831)
Synonyms: Emys pseudogeographica Gray, 1831, Graptemys kohnii (Baur, 1890), Malaclemys pseudogeographica (McDowell, 1964)
Authority databases: Reptile Database
Nomenclature follows global taxonomic authority databases.
Graptemys spp. was listed in CITES Appendix III by the United States, effective 14 June 2006 (Listing country: United States). As an Appendix III species, special international registration is not required. It is not designated as a Special Animal under the Animal Welfare and Management Act nor as a Designated Invasive Species.
Sources: CITES Appendices / Ministry of the Environment: list of invasive alien species / Order for Enforcement of the Act on Welfare and Management of Animals (designated dangerous animals)
Regulations may change. Always verify the latest information with the relevant authorities.
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Humidity
40〜70%
Aquatic turtle pellets, fish, insects, crustaceans, snails and aquatic plants
Keep the water at 21-27 C, the air a few degrees warmer at 24-29 C, and the hottest point of the basking spot at 32-38 C. All of these may drop by three to five degrees at night.
It is a strong swimmer, so allow at least 19-38 litres of water per 2.5 cm of carapace length; an adult may need close to 400 litres. Combine a basking platform large enough to dry off on with powerful filtration.
Omnivorous with a carnivorous bias: base the diet on aquatic turtle pellets and add fish, insects, crustaceans and snails. Unusually for a map turtle it also eats aquatic plants readily.
Wary: a basking animal drops into the water as soon as someone approaches. It is not aggressive and animals of the same species and size can be kept together.
The whole genus Graptemys was listed on CITES Appendix III at the request of the United States with effect from 14 June 2006. Appendix III species need no individual registration certificate in Japan, but export documentation from the country of origin is required. It is neither a designated dangerous animal nor an invasive alien species there, and animals in the Japanese trade are mostly captive bred.
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 average lifespan of Mississippi Map Turtle is Maximum recorded longevity in captivity is 35 years. With proper care and nutrition, they can live a long and healthy life.
Mississippi Map Turtle typically reaches Carapace up to 25cm, with females larger than males as an adult. Size may vary depending on care conditions and individual genetics.
Mississippi Map Turtle feeds on: Aquatic turtle pellets, fish, insects, crustaceans, snails and aquatic plants. Aim for a balanced diet with appropriate feeding frequency.
The price of Mississippi Map Turtle varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026