Tryon, G. W. (1878-1879). Manual of conchology, structural and systematic, with illustrations of the species, ser. 1., vol. 1: Cephalopoda. pp 1-316, pls 1-112. Philadelphia, published by the author. [pp. 1-64, pls. 1-22, Dec. 30, 1878; pp. 65-128, pls. 23-40, 29, March 1879; pp. 129-192, pls. 41-89, 28, June 1879; pp. 193-316, pls. 90-112, 6 October 1879].
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Tryon, G. W.
1878-1879
<i>Manual of conchology, structural and systematic, with illustrations of the species</i>, ser. 1., vol. 1: Cephalopoda. pp 1-316, pls 1-112. Philadelphia, published by the author. [pp. 1-64, pls. 1-22, Dec. 30, 1878; pp. 65-128, pls. 23-40, 29, March 1879; pp. 129-192, pls. 41-89, 28, June 1879; pp. 193-316, pls. 90-112, 6 October 1879]