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Pseudopotamis is a genus of freshwater snails which have an operculum, aquatic gastropod mollusks in the family Pachychilidae.

Distribution

It occurs on the Torres Strait Islands.

A sister group (the closest relative) of Pseudopotamis is genus Tylomelania. Pseudopotamis and Tylomelania split in the Middle Miocene c. 19.5 Mya.

Species

Species within the genus Pseudopotamis include:

• Pseudopotamis semoni Martens, 1894
• Pseudopotamis supralirata (E. A. Smith, 1887) - synonym: Pseudopotamis finschi Martens, 1894 - type species

Description

Pallial oviduct evolved into an uterine brood (that release shelled juvenile snails).

Ecology

Species in the genus Pseudopotamis are ovoviviparous.

References

1. Martens E. (1894). "von Mollusken". In: Semon R. W. (Ed.) Zoologische Forschungsreisen in Australien und dem Malayischen Archipel, Vol. V: Systematik und Thiergeographie, pp. 82–88. Jena, Fischer. Table 4.
2. ^ von Rintelen T., Stelbrink B. Marwoto R. M. & Glaubrecht M. (2014). "A Snail Perspective on the Biogeography of Sulawesi, Indonesia: Origin and Intra-Island Dispersal of the Viviparous Freshwater Gastropod Tylomelania". PLoS ONE 9(6): e98917. doi:10.1371/journal.pone.0098917.
3. ^ Glaubrecht M. & von Rintelen T. (2003). "Systematics, molecular genetics and historical zoogeography of the viviparous freshwater gastropod Pseudopotamis (Cerithioidea, Pachychilidae): a relic on the Torres Strait Islands, Australia". Zoologica Scripta 32: 415–435. doi:10.1046/j.1463-6409.2003.00127.x.

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