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A monograph of the Bucerotid or family of the hornbills Plate XLVI . Keuleroans litk Hfl imp HYDRO IS SA EXARHATUS Plate XLVI Illustration biodiversitylibrary org title Elliot Daniel Giraud NameFound Hydrocissa exarata NameConfirmed Hydrocissa exarata Biodiversity Heritage Library monograph of the Bucerotid or family