Berkeley, M. J. (1835). Observations upon the Dentalium subulatum of Deshayes. The Zoological Journal. 5: 424-427, plate 19, suppl. plate vol. plate 18.
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Berkeley, M. J.
1835
Observations upon the Dentalium subulatum of Deshayes
World Polychaeta Database (WPolyDb). Plate 19 (Ditrupa in fig 2) follows page 396, and a supplementary plate vol has a plate 18 (Filograna in fig 3, with 'Serpula arundo' (renamed Sabella tubularia in a footnote) in fig. 2)