Abstract
Among some Permian Polyzoa which Mr. Howse, of Newcastle, entrusted to me for examination was one labelled “Fenestella ramosa.” This I at once saw was not a Fenestella , but a Phyllopora , King, a new and, as yet, undescribed species. The genus Phyllopora was rightly founded by King to receive the Permian and Silurian species of Polyzoa which, prior to that time, had been referred to Retepora . In accordance with this view Mr. Vine has recently shown that among the ancient Polyzoa, so far as at present ascertained, we have none of the peculiarities of cell-growth which are characteristic of the recent Reteporæ; in short, that we have no Retepores among the Palæozoic Polyzoa. All such so-called Retepores should be now assigned to Phyllopora , King. The genus Phyllopora has as yet been but imperfectly worked; its rarity in the more recent and its imperfect preservation in the older rocks go far to account for this. It is of interest as one of the earliest of our Palæozoic Polyzoa.
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