Notices of Memoirs — G. R. Vine on Fossil PoJyzoa. 509 



IV. — Second Report of the Committee, consisting of Pkopessor 

 P. M. Duncan and Mr. G. R. Vine, appointed for the purpose 

 of reporting on Fossil Polyzoa. Drawa up by Mr. Vine 

 (Secretary). 



(Continued from p. 477.) 



1844. Myriaporid^, M'Coy. Family name only. 



This is the third family of M'Coy's very restricted classification of 

 Palceozoic Pol,yzoa. It embraces the Retepora, Lamk. = to Elasmo- 

 pora, King. The family includes Glaiiconome, Goldfuss, restricted 

 by Lonsdale, and the genus Fenestella, Lonsdale. It is impossible 

 to retain the family name in the present Report. 



1849. Phyllopora, King. 



There are unquestionably present in both the American and British 

 Paleeozoic rocks, species of Polyzoa having some of the inosculating 

 characters of Betepora cellulosa. These can neither be referred to 

 Fenestella nor Polypora. My objections to the term Retepora for 

 these have already been expressed. King, also, in his Permian 

 Fossils, has expressed his dislike to this term, and he suggests 

 another word to be used instead — Phyllopora. I prefer this, 

 especially as it has been consecrated by two good workers — Salter 

 and De Koninck. The earliest appearance of the genus, so far I am 

 acquainted, is in Lower Llandeilo flags at Ffairfach. The species 

 is unnamed, and it forms one of the specimens of the Wyatt-Edgell 

 collection. The general habit of the specimen is somewhat like 

 Retepora. We have only the reverse of a portion of the zoarium, 

 but in several places the branches are worn and the cells exposed, 

 but not with sufficient distinctness to make out their actual structure. 

 The fenestrge are oval and irregular, and the branches anastomose 

 without dissepiments. A fine large specimen — reverse only — of this 

 type is marked " Bryozoa," in case vii. ^^ of the School of Mines, 

 and as " Bryozoon" in the "Catalogue of Cambrian and Silurian 

 Fossils," p. 105. All the other specimens are very fragmentary, but 

 in the Devonian series there is a matrix of a very fine species. If 

 better fragments could be found in the Devonian rocks, good facilities 

 for the closer study of this type of Palaeozoic Polyzoa would be 

 offered. 



De Koninck refers two specimens, doubtfully, to this genus ' — 

 P. ? Haimeana, De Kon. ; and P. ? cribellum, De Kon. These are 

 amongst the Indian Fossils of Dr. Fleming. In the monograph of 

 Permian Fossils Mr. King refers, and fully describes, P. Ehrenbergi, 

 Geinitz, as belonging to this genus. In his paper on the Permian 

 rocks of South Yorkshire,^ Mr. Kirkby refers fragments of the same 

 species to Betepora Ehrenbergi (Phyllopora) . The genus is a com- 

 paratively rare one, and well-authenticated specimens are also rare. 

 To this genus I refer Nicholson's species ^ Phyllopora (Retepora) 



' Quart. Jouru. Geol. Soc. vol. xix. 1862. 



2 Journ. Geol. Soc. vol. xvii. 1861. 



3 Geol. Mag. Jan. 1875, PL II. Fiffs. 4-W. 



