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A monograph of the Bucerotid or family of the hornbills Plate XXXVII . GrKeul emails litli Hanhart imp RHYTIDOCEROS PLICATUS Plate XXXVII Illustration biodiversitylibrary org title Elliot Daniel Giraud NameFound Rhytidoceros plicatus NameConfirmed Rhytidoceros plicatus Biodiversity Heritage Library monograph of the