Cox & Arkell 1950. A survey of the mollusca of the British Great Oolite Series. Primarily a nomenclatorial revision of the monographs by Morris and Lycett (1851-53), Lycett (1863) and Blake (1905-1907). Part II, Revised Explanation of Plates, Morris & Lycett (Univalves. Mon. Paleont. Soc., London, 1950: pp. xiv-xxiv 49-105 + 28 pp.