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Potamides yokoyamai, Vicarya yokoyamai

Potamides (Vicarya) yokoyamai (Takeyama, 1933)

Invalid synonym: Vicarya verneuili yokoyamai

• Extinct species: Miocene (16.0 - 13.7 Ma)
• Habitat: Brackish, Tropical-Subtropical

• Classification
• kingdom Animalia, phylum Mollusca, class Gastropoda, order Caenogastropoda, family Potamididae, genus Potamides, subgenus Vicarya

• Distribution
• Neogene: Ibaraki
• Miocene: Hokkaido, Yamagata, Niigata, Toyama, Gifu, Kyoto, Okayama
• Investigation in progress: Ishikawa

• Subtaxa
• P. (V.) yokoyamai forma japonica