DESCRIPTIVE REMARKS. lx 
Authors of British Fossil Corals to the Poritide,* and is a frequent 
fossil at Braunton, Devon, as well as in the Carboniferous Slate and 
““Coomhola”’ grit near Bandon, in the county of Cork, it appears to be, 
as suggested by the late Professor Phillips, allied to Iichelinea, but 
presents structural differences which are pointed out in a notice of this 
Coral by the Author in the Explanation of the Maps of the Geological 
Survey of Ireland, Sheet 187, &., p. 24. 
Of the Cyathophyllide we have figured Cyathophyllum cespitosum, 
fig. 6, a, 6, a fasciculate or branching coral. Acervularia pentagona, 
fig. 7, a, 6, and Arachnophyllum (Smithia), Hennahi, fig. 8, a, 6, both 
astreiform or compound aggregations of corallites. 
The singular fossil called Calceola sandalina, fig. 9, a, b, c, formerly 
considered to be a Brachiopod shell, is now satisfactorily shown by 
Professor Lindstrémt+ to be a coral of the division Zoantharia rugosa, 
and allied to Gondophyllum, a Silurian genus which is also operculi- 
ferous. 
The Ecutnopermara of the Devonian rocks, as enumerated in Mr. 
Etheridge’s list of fossils, include two Starfishes, referred to the genera 
Protaster and Paleaster (both however specifically unnamed), from 
the Upper or Pilton group of North Devon eighteen Crinoids and one 
Pentremite, P. ovalis. The Crinoids, according to their present unsatis- 
factory determination, belong for the most part to the genus Cyatho- 
certnus, of which there are eight species named. Of the whole number 
eight species are said to continue into the Carboniferous rocks. The 
species we have figured are Cyathocrinus geometricus, Pl. xxx., fig. 2. 
Hexacrinus interscapularis, fig. 1., a4, 6; of this genus there are three 
species, all being confined to Middle Devonian, and Zaxocrinus macro- 
dactylus, fig. 3, a, 6, the only representative of the genus occurring in 
Upper Devonian of North Devon. 
The Devonian Poryzoa number about twelve species, all the genera 
except one occurring in Carboniferous rocks, and several of the species 
also continuing into that formation such as Certopora gracilis, Fene- 
stella antiqua (figured amongst the Carboniferous Fossils, Pl. xxxvii., 
fig. 1, a, b), of which F. plebeia and other species are believed to be 
synonyms. F. prisca, Glauconome bipinnata, Polypora laxa, and Ptylo- 
pora flustriformis. This group of Fossils, like that of the Echinoder- 
mata, are in consequence of their condition in these rocks, which are 
mostly decomposing slates, very difficult of determination, the defini- 
tion of the species cannot therefore be entirely relied on. 
The Devonian Bracuroropa, like those of older and newer strata, 
have been ably treated and elaborately figured by Mr. Thomas Da- 
vidson, F. R. 8., in his excellent monographs on this class of animals 
in the volumes of the Paleeontographical Society. From his descriptions 
and results, it appears there are above twenty genera, including up- 
wards of ninety species; twelve only of these pass into the Carboniferous 
* Opeicitenmps 22 le 
t Geol. Mag. (1866), Vol. iii., p. 356, &e., Pl. xiv. 
