150 Sedimentary Formations 
APPENDIX XVII. 
Mb. Lonsdale’s List, in 1858, of New South Wales Zoanthawa submitted 
to him for examination by Her. W. 13. Clarke in 1855. 
Genera. 
No. 
of 
Species. 
I Number 
L»f Species in Europe aiul America 
belonging to — 
I Lower 
Silurian. 
Upper 
Silurian. 
| Devonian. 
Carbon¬ 
iferous. 
Eavosites. 
2 
4 
4 
3 
I .... 
Calamopora. 
1 
2 
3 (?) 
4 
. 
Einmonria . 
2 
1 
1 
1 . 
1 
Alveolites. 
3 (?) 
2 
4 
5 
Syringopom. 
3 
1 
4 
5 
G 
New genus (?). 
1 
Canutes. 
1 
4 
2 
Cladopora (?) . 
1 
7 
Endoplivlliini . 
1 
0 
Trochophvllum . 
1 
1 
Pt vohopbvlluin . 
1 
1 
1 
1 
Clisiophyllum .. 
1 
2 
G 
Cvstophylhnn. 
1 
1 
3 
3 
Iletcrophvllia. . . 
1 I 
2 
1 
20 | 
11 
33 
20 
10 
Extract from letter from Mr. Lonsdale in explanation of the foregoing List:— 
“ My dear Sir, “ Bradford-on-Aron, Wilts, 12 July, 1S58. 
“I have not been able to reply sooner to your letter of 13th March, 
and the answer which I now give will prove I fear very unsatisfactory. 
The accompanying table contains a list of genera, and the number of species ; 
but the species are believed to be all new, and three or four of the genera are 
doubtful determinations. It is impossible, therefore, to define precisely the 
position of the beds which afforded the corals ; but the table contains also a 
rough enumeration of the geological distribut ion in Europe and America of 
the Australian genera; with some of the known localities. These details 
may assist in approximating towards the age of the beds which yield your 
Zoantharia. The genera Favorites, Calamopora (as distinct from Favorites), 
Emihousiu, Alveolites, Canutes, Ptychophyllum* and Cystophyllum may be 
assumed to be essentially Upper Silurian or Devonian, but it is impossible to 
state whether the Australian strata belong to the former or to the latter or to 
both* Negative evidence based 011 flic absence of Ilalyrifces would lead to the 
conclusion that the deposits are Devonian. Such evidence is, however, value¬ 
less, as an additional number of specimens might afford evidence of the 
existence of Jlnlyritcs and oilier important genera. As respects the Carbon¬ 
iferous series, t he geneva Syringopom and Gliriophyllum have each six species, 
principally from British localities ; but Syringopom has four or live Silurian 
and five Devonian, and these (4 -f- 5) neutralize any deduction which might 
be drawn from the six Carboniferous. Clisiophyllum lias two Silurian repre¬ 
sentatives, though as far as known no Devonian. The genus might conse¬ 
quently be deemed to indicate a Carboniferous age; it cannot, however, be 
opposed to seven genera (Favorites, &c.) above ment ioned. Eavosites Inis been 
said to occur in the mountain limestone, but 1 have not seen an example of it, 
and the genera as generally received requires much additional consideration. 
“ Rev. W. B. Clarke, &c., Ac., “ Ever your most obliged, 
“ New South Wales.” * WM. LONSDALE. 
