Nucula lacryma

Sowerby, J. De C. (1823-1825). The mineral conchology of Great Britain; or coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth. Vol. V. London, privately published, pp. 1-168 + index [169-171], pl. 408-503 [1823: pp. 1-64, pl. 408-443; 1824: pp. 65-138, pl. 444-485; 1825: pp. 139-171, pl. 486-503].