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crusty nautilus (Allonautilus scrobiculatus)
Internal anatomy of Nautilus umbilicatus [Allonautilus scrobiculatus]. From Arthur Willey's monograph, 1912 (copyright expired).
Source: https://commons.wikimedia.org/wiki/File:Nautilus_umbilicatus.jpg
The crusty nautilus or fuzzy nautilus (Allonautilus scrobiculatus) is a species of nautilus native to the waters around New Guinea, specifically New Britain and Milne Bay, and the Solomon Islands. Allonautilus scrobiculatus is instantly recognizable by the large open umbilicus. |