MORRIS— BRITISH FOSSILS. 
283 
riirap;moccra3 iutcimcJium, M'Coy, V. Oithoccrasesccntricum, Sow. S. S. Oil- 
F. 322. filosiim, Sow. Sil. 258. 
nnntilcum, Sow. Sil. 258. fimbriatum, Sow. S. S. G20. 
ryriforme, Sow. Sil. 258. grcgareum, Sow. S. S.^"?- 
vcutricosum, Sow. Sil. 253. imbricatum, Wahl. Sil. 2ob. 
Lituitcsarticulatus.&if. S. S. C22. i'oes, So.t. Sil. 258. 
Biddulphii, Sow. S. S. 623. laqacatumj/a//, P. ^ . \ . 1. 1^- 
gigantcus, Soxo. Sil. 250. Luiensc, So;?-. Sil. 258. 
tortuosus, Smo. S S. 626. Maolarcui, Sail. Sil. 17G. _ ^ 
Orthcceras annulatura, Sow, M. C. t. MocUrconse, Sow. S. S. 2ob. 
133. priuiKTum, Forlcs, Sil. 268. 
angulatum, Wahl. Sil. 258. perelcgaus, Sal'.. M. G. S. 2 351. 
articulatum, Sow. S. S. 613. semipavtitum. Sow. S. S. 6i4. 
attciiuatimi, Sow. S. S. 632. substriatum, d'Orb. Prod. o4.^^ 
bullatum, 5o?f. Sil. 258. subundaktum, Foi il. G. K. 3/ 1>. 
canaliculatiim, So;'.'. Sil. 25S. Bubgrcgarinm, M' Coi/, H. I. p. J. 
contrale, //is. Let. Sure. 29. tenui.annulatum, M'Coi/,V. ^'j^-^- 
circularc. Sow. M. C. 29. tcuiiicinctiiui, Forll. G. 11. Si 1. 
conicum, Jlis. Let. Succ. 29. tracbcale, Sow S. S. 604. 
diinidiatiim, Sow. Sil. 258. vcrtcbralc, Hall, P. N. Y. 1. 201. 
distans, Soio. S. S. 610. 
SEDid Inceetje. 
Ischaditos Kocnigi. S. S. G97. Spongarluni Edwardsi, 3Iurch. S. S. 
Spougariura jaquistriatum, M'Coy, P. 096. 
F. 42. iutcrliceatum, M'Cotj, P. F. -13. 
inteiTuptura, M'Coy, P. P. 43. 
\_Fur the Fislcs, see Tikstoues," p. 286.] 
WEN LOCK GROUP. 
Localities of the Tar4!cko\ Shales. 
These rocks, wliich arc sometimes shales, occasionally hard and 
slaty, and containing but few fossils, occupy an intermediate place 
between tlie Llandovery beds and the overlying Denbigh grits and 
shales. Kcar Llandovery ; New Bridge and at Tarannoh, between 
Llanbrynmaer and Llandiloes, in Montgomeryshire. 
Localities of Denlijh Jlods. — These beds consist of sandstones, 
grits, shales, and llagstone?, usually presenting a slaty cleavage. 
Marlocs Bay, Pembrokeshire; near Bala, near Llanbistcr, Eaduor- 
shirc ; Berwyns, Denbighshire. The fossils arc chiefly Wenlock 
species, Chonctes lata, Spirifer trapezoidulis, Cucullclla ovata, Murchi- 
sonia Lloydii, BcUcrophou carinatus, Arthoccras annuhitam. 
Localities of Woolhope Limedones. — A variable deposit of grey lime- 
stone, either thick-bedded or nodular, and subordinate to beds of shale. 
This bed and the Denbigh grits are considered by Sir E. Murchison to 
be simply lithological varieties of the lower portion of the Wenlock 
formation (Siluiia, p. 116). Gorton, near Presteign, Nash Scar, Old 
lladnor, Woolhope, Ilayhead, near Walsall, Colmer's End. 
Fossils. — Orbicula Forbesi, Strophumena imbrex, S. pcctcu, Spirifer 
elcvatup, S. trnpczoidalis, Euomplialus £culi)tus, Orllicccras annidatum, 
55 2 
