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Since my first paper, “A Review of the Family Diastoporidae for the purpose of Classification”, was written, a very important book has been published, namely ‘A History of British Marine Polyzoa,’ by the Rev. Thomas Hincks. In this work the classification adopted by Prof. Busk in his Monograph of the Fossil Polyzoa of the Crag, 1859, and also in his British-Museum Catalogue, part iii. Cyclostomata, 1875, is set aside for one that I have little hesitation in saying will prove to be far more valuable to the working student. Instead of separating Diastopora , and making it the type of a family, Mr. Hincks places this genus with others in his second group of the Cyclostomata, which he calls Incrustata, D9Orb. The family name which he adopts is Fam. II. Tubuliporidae, which includes the genera Stomatopora, Bronn Tubulipora, Lamarck Idmonea, Lamouroux Entalophora, Lamouroux . Diastopora, Lamouroux (pt.). Seeing that I have already committed myself to Prof. Busk9s arrangement, it is impossible for me now to retreat; and, with this explanation, I must be excused for still adhering to the family name I used at first‡. In his remarks on the Cyclostomata, Mr. Hineks says :—“ Simplicity is in the highest degree characteristic of the group; the cells are universally tubular; the polypide is without complexity of structure, and has a small number of tentacles; all appcndicular organs are wanting” §. In another |
