Pixell, Helen L. M. (1913). Polychaeta of the Indian Ocean, together with some species from the Cape Verde Islands. The Serpulidae, with a classification of the genera Hydroides and Eupomatus. Transactions of the Linnean Society of London. (Series 2) 16: 69-92.
""The Serpulids described here belong to five collections. Two of these were made by Prof J. Stanley Gardiner, F.R.S., one from the Maldive Archipelago in 1899 and the other from the Seychelles and Chagos Groups in 1905. The three other collections were made by Mr Cyril Crossland, M.A. : the first during 1901-2 in the neighbourhood of Zanzibar, the second during some parts of the years 1904-8 in the Red Sea and the third in the Cape Verde Islands in July and August, 1904. "The collections consist of 22 species and three varieties belonging to ten genera. To include these forms one new genus has had to be made, viz. Pomatoleios but I think two have been shown to be superfluous, viz. Eucarphus Morch and Glossopsis Bush. Seven of the species and two varieties seem to be entirely new. The genera Spirobranchus and Hydroides are especially well represented"