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FOSSILS FROM THE PALZOZOIC ROCKS OF N.S.W. 255 
Tentaculites was looked upon as the shelly case or tube of a 
icolar Annelide, now it is regarded by the best authorities as 
the shell of a Pteropod. 
If the structure exhibited by the Australian Z'entaculites should 
rove to be constant throughout the genus, the following description 
of that of a Pteropod by the late Prof. Queckett will show how little 
e two have in common. In most of the genera of this class the 
shell' “is as transparent as glass, and almost structureless ; but in 
a large species of C'reseis it was found to be composed of two layers, 
the outer opaque and minutely granular, the inner somewhat 
I would propose for it the name 7. Liversidget. : 
. and horizon—Holmes’ Paddock, on the Macquarie, below 
Wellington, in a limestone of Silurian or Devonian age! 
Class—BRACHIOPODA. 
Genus SprriFERA. (Sowerby.) Phillips. 
Spirifera disjuncta. J. de C. Sowerby, Pl.—Fig. 5. 
Be 
S. disjuncta. Davidson, Mon. Brit. Dev. Brachiopoda, p. 23, t D, 
1-5. 
Obs. Prof. Liversidge has forwarded a white sandstone from near 
Wallerawang containing the casts of numerous Spirifers having all 
the appearance and characters of the above species. The hinge 
line of these shells is long, and the whole surface of the valves 
Carboniferous rocks, and of Sp. disjuncta, of the Devonian. 
rds the first it approaches particularly the variety attenuata 
(J. de ©. Sby.), but after consulting my friend, Mr. T. Davidson, 
F.R.S., I think the most appropriate reference will be to the 
Devonian form. 
Spirifera disjuncta was first indicated as an Australian fossil _ 
by the late Mr. T. Stutchbury, who found it at Pallal, as —. in 
‘ Lectures on Histology, 1854, ii 335-36. 
; Parliamentary Blue Book, Dee. 1854, p. 19 (folio, London, 1855). 
Recherches Foss, Pal. Nouv.-Galles du Sud, 1876, p. 100. 
