On the Bryozoa of the Bay of Naples. 267 British Museum labelled " Jamaica " there may be an error. The two specimens with thirty-one pairs may be from the mainland and be P. Edwardsii. The other may be a true Jamaica species. The following questions arise : — Is there a St.-Thomas species with twenty-eight pairs of feet? A Jamaica species with thirty-seven ? A St.-Vincent species with thirty-three ? P. Edwardsii with thirty-one, with twenty-nine and thirty sometimes ? A Chilian species with nineteen or twenty-seven or thirty-two ? A Cape species with fourteen and another with seventeen ? or are these the same ? In the Australian and New-Zealand species the number of feet seems fixed. Mr. Wood-Mason has informed me that he has obtained a new species from the Cape, which he will shortly describe. I trust that he and Prof. Perceval Wright may be able by more careful investigation of the various forms to clear up the confusion which certainly prevails as yet with regard to the species of this isolated genus. XXXI. — On the Bryozoa (Poly zoo) of the Bay of Naples. By Arthur Wm. Waters, F.G.S. [Plates XXIII. & XXIV.] [Continued from p. 202*.] Cyclostomata. The classification of the Cyclostomata is even more diffi-cult than that of the Cheilostomata, which partly arises from there being fewer characteristics upon which it can be grounded. The winter time, when I made the collection, seems to have been specially unfavourable for studying this suborder ; for I seldom received colonies with active polypides, and I have been surprised to find what a large number have no ocecia. We shall probably ultimately have to adopt an arrangement with the Cyclostomata somewhat similar to that introduced by * Note to page 199. — I find there is a fifth genua Buskin, created by the Rev. Tenison Woods, in Proc. Roy. Soc. Tasmania, 1< S 7(>. This has already been shown by Mr. Etheridge, Jan., to be a duplicate name.
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