502 G. R. Vine—Carboniferous Polyzoa. 
types of Goldfuss’s genus. The first had reference to the fixed 
Polypiferous masses which are still known by the same name, but 
the last are now referred to the Fenestellide. 
The species of Cellepora are now placed with Chetetes, and most, 
if not all, of the Ceriopora of the Paleozoic era are also referred to 
Cheetetes and to Alveolites. 
The use of the term Retepora, as applied to Paleeozoic forms, has 
been abandoned, and the better defined generic term Fenestella 
used instead; but Lonsdale, in his otherwise clearly defined 
characters of this genus, included both Fenestella and Polypora 
types in the one description of the genus. 
However we may differ, at the present time, from Professor 
Phillips? in his arrangement of the ‘Zoophyta’ found in the Car- 
boniferous rocks of Yorkshire, we must give him the credit for 
being amongst the first to attempt a division between Corals and 
Polyzoa; but in the use of Lamarck’s genus J/illepora for some of 
his species, he seems to have been very undecided as to the true 
character of his fossils. 
Phillips describes eight species of Retepora, defining certain 
terms which he uses, such as fenestrule, dissepiments, and interstices 
—terms still used in later descriptions of Fenestella. His species 
were ht. membrancea, flabellata, tenuifila undulata, irregularis, polypo- 
rata, nodulosa, and laxa. The poverty of Phillips’s diagnosis renders 
identification of his species a very difficult matter, but some of his 
Species were so truly typical in their general, as well as in their 
minute characters, as to enable Mr. G. W. Shrubsole, in his elaborate 
review of the Fenestellide,> to retain three of them as types of his 
very restricted Carboniferous forms. The retained species are :— 
Fenestella membranacea, syn. F. tenuifila, Phill., and F. flabellata, Phill. 
»,  nodulosa, Phill. 
» polyporata ,, 
The Retepora flustriformis, Phill., has been placed as a synonym of 
L. plebeia, M-Coy, by Mr. Shrubsole,t and as Ptylopora by Morris.° 
By Phillips it was regarded as the Millepora flustriformis® of 
Martin, and he also said it resembled the Gorgonia antiqua of 
Goldfuss. Retepora pluma, Phill., is now Glauconome; and Flustra 2? 
parallela, which Phillips describes as “Linear: longitudinally and 
deeply furrowed, cells in the furrows, in quincunx, their apertures 
oval, prominent”’’:—M ‘Coy refers to the genus Vineularia, Defrance, 
and Morris ® places it and another species of M‘Coy’s with the genus 
Suleoretepora, D’Orb. The species has no affinities with any of 
these genera, it appears to me to be the Carboniferous descendant 
of the more ancient Ptilodictya, Lonsd. (= Stictopora, Hall). The 
non-celluliferous, striated, sometimes rugose margin, and the central 
laminar axis or septum, which divides the cells of opposite sides, 
Geology of Russia. 2 Geology of Yorkshire, 1836 
* Quarterly Journ. Geol. Soc. 1879. 4 Tbid. a 278. a 
2 Catalogue of British Fossils, 8 Petrefac. Derbiensia. 
: Geology of Yorkshire, 8 Syn. Carb. Foss. of Ireland. 
Catalogue of British Fossils, 
