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Keywords from Image Description:
Illustrated Index of British Shells Plate . En Illustrated Index of British Shells Plate XIII Assiminea Grayana JeffreysAssiminea grayanaAssiminea littorea Delle ChiajeMelarhaphe neritoidesRissoa ulv PennantPeringia ulvaeRissoa ulv var subumbilicata Peringia ulvaeRissoa Barleei JeffreysPeringia ulvaeRissoa striatula MontaguCeratia