EXPLANATION OF THE PLATES. 61 
Fig. 8. STROPHOMENA EUGLYPHA, Dalman, sp. 
Leptena, Sil. Syst., p. 622. Strophomena euglypha, Sil., 4th edition, pl. xx. 
o. 16. 
Original. Wenlock Limestone, Dudley and Dormington Wood. Mus. G. 
Sal 
LLANDoVERY TO LupLow.—Sil., 4th edition, p. 528. In Mem. Geol. Surv., 
vol. iii., p. 276, in the list of Lower Llandovery fossils, the Quaker’s Bury- 
ing Ground, near Welshpool, Montgomeryshire, is given as a locality for 
this very characteristic Upper Silurian species. Upper Llandovery ; ibid., 
p- 861, at Pen-y-lan, Llandovery ; alsoin Wenlock rocks, near Llansan- 
nan (ibid., p. 279), at Frid-y-fedwen. In Mem. Geol. Surv., vol. ii., 
part i., p. 284, many localities are mentioned in Wenlock Limestone and 
Shale in the Malvern, Abberley, Woolhope, and Usk districts; in Lower 
Ludlow, Malvern, and Usk districts; Aymestry Limestone—Malvern, 
Woolhope, and Usk districts; as well as W. of Rock Farm, May Hill 
district ; Aberedw, Builth district ; and Swansea-road, Golden Grove, 
&e., in the Llandeilo district. In Ireland, it has been collected by the 
Geol. Survey from Upper Llandovery rocks at Belvoir, Co. Clare ; and 
from Wenlock rocks, Smerwick Harbour ; and Gortadoo, Kerry. 
Fig. 9.—a, b. SrROPHOMENA DEPRESSA, Dalman, sp. 
Leptena, Sil. Syst., p. 623. S. depressa, Sil., 4th edition,pl. xx., fig. 20. 
a. Original, Ventral valve; Wenlock Limestone, Dudley. Mus. G. S. I. 
b. Original. Interior of same valve ; Wenlock Limestone, Wenlock Edge. 
Mus. G. 8. I. 
Carapoc To LupLow.—Sil., 4th edition, p.528. ‘A shell frequently found 
* on the surface of'slabs of limestone at Wenlock and Dudley.” This highly 
characteristic fossil occurs both in Aymestry and Wenlock, but most 
abundantly in the latter ; it is sparingly distributed throughout the other 
strata of the Silurian series. Sil. Syst., p. 623. In Memoirs Geol. Sury., 
vol. iil., p. 269, list of Caradoc fossils ; localities are given for this species 
in Caernarvonshire, Denbighshire, Montgomeryshire, and Merionethshire. 
Lower Llandovery, tbid., p. 277. Upper Llandovery, ibid., p. 361; and 
Wenlock rocks, in North Wales ; ibid., p.279. In Mem. Geol. Surv., 
vol. i1., part 1., p. 283, numerous localities are recorded in Wenlock and 
Ludlow rocks in North and South Wales, and various counties in Eng- 
land. In Cat. Brit. Foss. (1854), p. 147, Westmoreland is mentioned as 
an additional locality. In Ireland it occurs in Curadoc- Bala limestone, 
at the Chair of Kildare; also in the schists of Desertcreat, Tyrone ; and 
from Upper Llandovery rocks at Ballycar, Co. Clare ; and Wenlock rocks 
at Ferriter’s Cove, and Coosathurrig, Dingle; and in Limestone W. side 
of Cahirconree, Co. Kerry. 
“eteaures 
