''Potamon'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of freshwater or semiterrestrial crabs mainly found from

Southern Europe Southern Europe is also known as Mediterranean Europe, as its geography is marked by the Mediterranean Sea. Definitions of southern Europe include some or all of these countries and regions: Albania, Andorra, Bosnia and Herzegovina, Bulgaria, C ...

through the

Middle East The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq. The term came into widespread usage by the United Kingdom and western Eur ...

, and as far east as north-western

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

. The only exception is the North African ''P. algeriense'', which also is the only potamid of mainland Africa. Twenty species are currently recognised. These crabs are omnivores that have a broad ecological tolerance. The adult Potaman reach up to 50 mm in size during their 10-12 year life span. *'' Potamon algeriense'' *'' Potamon bileki'' *'' Potamon bilobatum'' *''

Potamon fluviatile ''Potamon fluviatile'' is a freshwater crab found in or near wooded streams, rivers and lakes in Southern Europe. It is an omnivore with broad ecological tolerances, and adults typically reach in size during their 10–12 year lifespan. They in ...

'' *'' Potamon gedrosianum'' *'' Potamon hippocratis'' *''

Potamon hueceste ''Potamon'' is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African ''P. algeriense'', which also is the only ...

'' *'' Potamon ibericum'' *'' Potamon magnum'' *'' Potamon mesopotamicum'' *'' Potamon monticola'' *'' Potamon pelops'' *''

Potamon persicum ''Potamon'' is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African ''P. algeriense'', which also is the only ...

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Potamon potamios ''Potamon potamios'', the Levantine freshwater crab, is a semi- terrestrial crab occurring around the eastern Mediterranean, including many Mediterranean islands, extending as far south and west as the Sinai Peninsula. Description Levantine ...

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Potamon rhodium ''Potamon rhodium'', commonly known as the Rhodes freshwater crab and locally known as the Valley crab, is a semi-terrestrial crab endemic to the island of Rhodes, Greece. The unique pattern on the carapace seems to mimic a moth. Like other crab ...

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Potamon ruttneri ''Potamon'' is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African ''P. algeriense'', which also is the only ...

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Potamon setigerum ''Potamon'' is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African ''P. algeriense'', which also is the only ...

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Potamon strouhali ''Potamon'' is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African ''P. algeriense'', which also is the only ...

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Potamon transcaspicum ''Potamon'' is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African ''P. algeriense'', which also is the only ...

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Potamon ilam ''Potamon'' is a genus of freshwater or semiterrestrial crabs mainly found from Southern Europe through the Middle East, and as far east as north-western India. The only exception is the North African ''P. algeriense'', which also is the only ...

'' *'' Potamon elbursi'' Many other taxa from

Indochina Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...

, originally described as species of ''Potamon'', are now placed in other genera, such as '' Himalayapotamon'', '' Beccumon'', '' Eosamon'', and '' Takpotamon''.

References

Potamoidea Taxa named by Marie Jules César Savigny Decapod genera {{Potamoidea-stub