Glassaulax didyma (Roding)
Species	Phylum Mollusca - Gastropoda - Mesogastropoda - Naticidae
Place	Inba-Mura, Chiba-Pref., Japan
Epoch	Cenozoic - Quaternary - Pleistocene
Size	Height 4.1 cm, Diameter 4.7
File No.	IB010
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