Striped-necked terrapin (Mauremys caspica) is a freshwater turtle with a native range from central Turkey to Iran and Bahrain. It has been present in the pet trade. The duration and volume of trade is not determined. M. caspica is regulated at the species or genus level in Oregon, Washington, Hawaii, and New Mexico. This species has records of introduction to Germany and Latvia as well as the United States (Massachusetts). The introduction to the United States did not result in an established population. No information was found regarding the status of the introductions in Germany and Latvia. The History of Invasiveness is classified as No Known Nonnative Populations. This species is a known carrier for Salmonella which poses a risk to human health. The Overall Climate Match with the contiguous United States is High. Areas of high match were mainly found in the West with some large patches in the Central Plains and northern Great Lakes. The Certainty of Assessment is Low mainly due to the lack of information regarding history of invasiveness and the complicated taxonomic history with M. rivulata. The Overall Risk Assessment Category for Mauremys caspica is Uncertain.
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