319 
BRITISH FOSSILS, STRATIGEAPHICALLY ARRANGED. 
Bt John Moekis, F.G.S. 
L PALiEOZOIC SYSTEM. 
{Continued from page 286.) 
The following table aflfords an. approximate numerical estimate of the genera and 
species of Silurian fossils within the British area hitherto, described. 
Llandeilo Llmulovery Wenlock 
Longmynd Lingula and and and 
Rocks. Flags. Caradoc. May Hill. Ludlow. Tilestones. 
G€U. 
Spec. 
Gen. 
Spec. 
Gen 
Spec. 
Gen 
Spec 
. Gen 
Spec 
Gen. 
Spec 
Plants ? . . . . 
2 
3 
2 
2 
4 
5 
1 
1 
8 
4 
2 
2 
AltOEPHOZOA - - - 
2 
2 
3 
3 
ZooPHTTA Anthrozoa 
12 
18 
8 
14 
31 
72 
ZooPHTTA Hydroidea 
4 
26 
1 
1 
2 
3 
ECHrjfODEEMATA - - 
10 
19 
2 
2 
25 
50 
Annellida - . . - 
2 
3 
"i 
i 
10 
18 
2 
3 
4 
7 
Ceustacea - . . . 
1 
1 
6 
10 
36 
116 
12 
15 
19 
44 
5 
14 
Bryozoa .... 
1 
1 
1 
7 
12 
3 
4 
8 
18 
Beachiopoda - ■ ■ 
2 
3 
12 
96 
9 
50 
16 
87 
1 
i 
MONOSITAEIA - - - 
3 
16 
1 
5 
3 
17 
DiMYAEIA .... 
11 
33 
8 
16 
16 
56 
Gasteeopoda - - - 
13 
36 
12 
24 
11 
37 
i 
i 
Heteeopoda ... 
1 
9 
1 
5 
1 
6 
Pteeopoda - - • 
4 
10 
3 
3 
3 
5 
Cephalopoda - . - 
5 
38 
6 
15 
6 
40 
Pisces 
5 
9 
3 
5 
List of Books, Mbmoies, &c., relating to Silurian akd Cambrian Rocks. 
[Note. — The principal abbreTiations nsed in the above references belong to the following works : — 
A. N. H., Annals of Natural History; G. J., Journal of Geoloi^ical Society; G. R., Geological Report, 
&c., Portlock ; M. G. S., Memoirs of Geological Survey; P. F., Palseozoic Fossils, if Coy ; P. N. Y., 
Pateoiitology of New York, iZoJI; S. S., Silurian System, 4to. ; Sil., Siluria, 1838, JfwrcAison ; S.F., 
Silurian Fossils, irCoy.'] 
Aihin, A. — " Observations on the Wrekin." Geol. Trans. 1 ser., Vol. I., p. 191. 
Aveline, W. T. — See Ramsay and Aveline. See Salter and Aveline. 
Banks, R. H. — " On the Tilestones of Kington," &c., Joitrn. Geol. Sac, 12, p. 93. 
Barrande, J. — " Le Systeme Silurien de la Boheme" (Trilobites ) 1852. 
„ " Graptolites de Boheme." Prague, 1850. 
Bowman, J. E. — " On a small patch of Silurian Rocks, to the west of Abergele," 
&c., Geol. Proc, Vol. II., p. 666 ; Geol. Trans. 2 ser. Vol. VI., 
p. 195. 
„ " Notice of Upper Silurian Rocks," &c., Trans. Manch. Geol. Soc, 
Vol. I., p. 194. 
Bryson, A. — '■ On Worm Tracks in Silurian Slates." Ed. New Phil. Journ., 1855, 
p. 368. 
,, " On Diatomacea in the Silurian Slates of Scotland." Ibid., p. 368. 
Buckland, W. Rev. Prof. — " Description of the Quartz Rock of Lickey Hill, Wor- 
cestershire." Geol. Trans., 1 ser. Vol. V, p. 507. 
Cunninyham, R. J. H. — " Geognostical Account of the County of Sutherland." 
Trans. Highland Soc, April, 1839. 
Conyheare, Rev. J. J. — " On the Geology of the Malvern Hills." Annals of 
Philosophy, Vol. XX., 1822, p. 337. 
