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Cryptonatica sp.

genus Cryptonatica Dall, 1892

• Modern species: Oligocene - Present (28.4 - 0.0 Ma)
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Gastropoda, order Littorinimorpha, family Naticidae

• Distribution
• Miocene: Nagano, Ibaraki, Hiroshima, Kagawa
• Miocene-Pliocene: Fukushima, Nagano
• Pliocene: Aomori, Akita, Niigata, Kanagawa
• Pliocene-Pleistocene: Ishikawa
• Pleistocene: Hokkaido, Aomori, Niigata, Toyama, Ishikawa, Ibaraki, Tokyo, Chiba, Kanagawa, Aichi
• Investigation in progress: Miyagi

• Subtaxa
• C. affinis, Arctic moonsnail
• C. andoi, Violet-mouthed moon
• C. janthostoma
• C. russa
• C. tugaruana