Ashworth, James Hartley. (1903). The anatomy of Arenicola assimilis, Ehlers, and of a new variety of the species, with some observations on the post-larval stages. Quarterly Journal of Microscopical Science, London. (new series) 46(184): 737-785.
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Ashworth, James Hartley
1903
The anatomy of Arenicola assimilis, Ehlers, and of a new variety of the species, with some observations on the post-larval stages
Quarterly Journal of Microscopical Science, London