9 
Genus — PTYCOPHYLLUM, Milne Edwards and J. 'Raime. 
Ptycopeyllum patellatuMj Schlotliehn} 
Fungites 'patellatus, ScLlotheim, 1820. Petrefaktenkuude, I, p. 247. 
Stronihodes plicatus, Lonsdale, 1839, in Murchison’s Silurian System, p. G91, pi. 10 his, 
fig. 4. 
FtyCOplll/llum patellatum, Milne Edwards and J. Haime, 1852, Mou. Brit. Foss. Corals, 
p. 291, pi. 67, fig. 4. 
„ ,, Salter, 1859, in Murchison’s Siluria, p. 534, pi. 38, fig. 4. 
Coral short, pedicellate, epitlieca ridged, calice very everted and with 
laminated margins, resembling somewhat a mushroom in form. Small pseudo- 
columella ; central cavity pretty deep ; septa alternately varying a little, thick 
at base and thin at the ends, where the larger ones are strongly Ijent and rise 
a little at the centre ; about a hundred in number. 
Horizon and Localities. — This species has been found in the Upper 
Silurian of England, Ireland, and Gothland. Mr. Clarke has found it at 
Dangelong, in the Cooma District, in a psammite coloured a deep red by oxide 
of iron. 
CYSTIPIIYLLUM. 
Cystiphylltjm siLiTJiiENSE, Lonsdalc. 
Cystiphylluni sUurense (pars), Lonsdale, 1839, in Murchison’s Silurian System, p. 091, pi. 
10 his, fig. 1. 
„ „ Milne Edwards and J. Haime, 1852, Mon. Brit. Foss. Corals, p. 298, 
pi. 72, fig. 1. 
,) „ Lonsdale, 1859, in Murchison’s Siluria, p. 533, pi. 38, fig. 1. 
Although I have been to examine only one fragment of this Cysti- 
phyllum, its form and characters agree so perfectly with those of specimens 
described and figured by the Authors whose works I have quoted, that I have 
no hesitation in referring it to the same species. 
Horizon and Localities. — This species has been found in the Upper 
Silurian of Wenlock in England ; of Andann and of Cong, in Ireland, as well 
as Eeval and Pavlowsk in Eussia. The Australian specimen is in a matrix 
of quartzite reddened by oxide of iron, from Burrawang to the east of Molong, 
^ [It is almost certain that this is Mucophyllum crateroides, the type of a new genus, differing widely 
in internal structure from Ptycophi/Uum. See Etheridge, R. , Junr., Description of a proposed New Genus of 
Rugose Coral (MucojjJiylhmi). Records Geol, Survey N. S. Wales, 1S94, IV, pp. 11-18, pis. 3 and 4. — VV.S.D.]' 
