Hope, R. (1889). On two new British Species of Sponges, with short noticesof an Ovigerous Specimen of Hymeniacidon Dujardinii, Bowk., and of a Fossil Toxite. Annals and Magazine of Natural History. (6) 4(23): 333-342, pl. XVI.
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Hope, R.
1889
On two new British Species of Sponges, with short noticesof an Ovigerous Specimen of <i>Hymeniacidon Dujardinii</i>, Bowk., and of a Fossil Toxite