125 
Horizon and Localities . — This "beautiful species, which Mr. McCoy 
has rightly dedicated to the Kev. W. B. Clarke, who sent it to him, appears 
to occur rather frequently in a friable, micaceous, greyish or reddish sand- 
stone found at Muree Quarry, Eaymond Terrace, at the junction of the 
Williams E-iver with the Hunter. Mr. McCoy says he has received it from 
Darlington, Australia, where it is found in a rather friable grey shale. 
CYATHOCEINUS, Miller. 
Cyathocrinus konincki, W. B. Qlarhe. 
PL VI, Pig. 4. 
An Bentadia corona ? Dana, 1849, Geol. Wilkes, U. S. Ezplor. Exped., p. 713, pi. 10, fig. 10. 
I know no other Crinoid whose calyx attains such a large size as this 
one. The calyx is globular, resembling a large pomegranate. The base, 
nearly regularly pentagonal, shows a rather deep hollow resembling a five- 
rayed star, each ray corresponding to one of the sutures of the five hasals.^ 
The suh-radials are large, nearly as long as broad, and irregularly arched in 
the centre ; four of them are rather regularly pentagonal ; the fifth cor- 
resjionds to the irregular side of the calyx, and is hexagonal ; its truncated 
apex unites with an anal piece very much smaller than itself ; this anal piece 
is surmounted by two other pieces still smaller. The radials are all of nearly 
the same shape, irregularly pentagonal, two of ’their sides being smaller than 
the others, the pieces are broader than long ; their articular edges for the 
arms are very broad, and their internal margin is sigmoidal, as in C. granu- 
latus, Phillips. 
^ [Phialocrinus Konincki. Vide R. Etheridge, Junr., Mem. Geol. Survey N.S. Wales, Pal. v, pt. 2, 1892, 
p. 107,^ pi. 16, figs. 1-4.— W.S.D.] o < > J' 
^ [The position of the sutures between the five “ basals ” in the above diagram does not agree with their 
position, as shown on pi. vi, figs. 4a and 4b, accompanying this work. In the last two plates the sutures 
“basals” are clearly shown to alternate in position with the sutures between the “ sub-radials. ” — 
