71 
Some of these limestones are compact and finely tinted, and, although 
-they have been frequently cracked, the fracture-lines have been completely 
filled in with veins of pink calcite. These rocks present a striking ap¬ 
pearance, being full of the joints of encrinites and massive corals, and 
would make handsome ornamental marbles when polished, comparing 
favorably with the “ entrochial ” marbles of Derbyshire, and the “ madre¬ 
pore ” marbles of Devonshire. 
Fossil Determinations. 
Specimen Number. 
Fossils, with remarks thereon. 
58 
59 
60 
61 
62, 63 
64A 
66 
67 
68 
7 °, 71 
72 
(?) Brachiopods, obscure traces. 
Crinoid columnar (cast), and (?) Orthis. 
(?) Atrypa; (?) Orthis. Imperfect casts and moulds. 
A decorticated brachiopod valve, indeterminate. 
No traces of fossils externally.In thin section the rock 
is seen to be a volcanic tuff, more or less basic in 
character, with minute chips of quartz and some 
chlorite. Traces of ostracoda, and one complete 
carapace. (Slide No. 1079). 
Cast of a simple rugose coral, indeterminate, but re¬ 
sembling Petraia; also in microscope section 
fragments of shells, embedded in a volcanic tuff 
containing much biotite and chlorite. (Slide No, 
1080). 
Largely composed of the remains of at least two 
species of crinoids. Also impressions of brachio 
pod valves, probably referable to Atrypa. 
Fragment of a flattened orthoceracone, with a fainy 
large and eccentric siphuncle. Cast of (?) Athyris. 
Cannapora australis , sp. nov. See description at 
end of this report. 
Microscope slide No. ion shows this rock specimen 
to contain a branch of a ramose monticuliporoid 
(indeterminate); pellets of Girvanella, cf. in- 
crustans , Wethered (non Bornemann), and of G. 
(?) pisolitica, Weth. showing the primary series of 
cells; numerous ossicles of crinoids with the echino- 
dermal structure preserved ; fragments of brachio¬ 
pod shells; sections of the carapaces of trilobites 
and ostracoda; embedded in a crystalline calcitic 
base. 
Microscope slide No. 1012 contains several fragments 
of corals, including Favosites sp. and Monotrypa 
sp. (see PI. IV., fig. 8); also fragments of 
brachiopod shells and carapaces of ostracoda. The 
larger portion of the rock consists, of the remains 
of crinoids, including part of a column and arm- 
ossicles. 
j Cannapora australis , sp. nov. 
Remains of crinoids. 
Cannapora australis , sp. nov. (PI. VIII., fig. 18). 
Also Heliolites sp., at base of above coral. 
