EXPLANATION OF THE PLATIS. 93 
PLATE XXXII. 
FOSSILS OF THE OLD RED SANDSTONE OR DEVONIAN 
ROCKS, 
MOLLUSCA.—CONCHIFERA. 
Fic. 1.—AVICULOPECTEN TRANSVERSUS, Sowerby, sp. 
Pecten. Trans. Geol. Soc. Lond., 2nd series, vol. v., pl. liii., fig. 3. Phillips, 
Pal. Foss. p. 46, pl. xx1., fig. 77. 
From Trans. Geol. Soc., op. cit. 
Uprer Devontan.—South Petherwin, Cornwall; Baggy and Pilton groups, 
North Devon. Passage beds, Barnstaple, N. Devon. (Etheridge Journ. 
Geol. Soc., Lond., vol. xxiii., p. 625.) 
Fie, 2.—AvicuLA DAMNoNIENSIS, Sowerby. 
From Trans. Geol. Soc., op. cit., fig. 22, Phil. Pal. Foss., p. 51, pl. xxiii., 
figs. 90, 91, 92. 
Upper Devonran.—Pilton, Brushford and Braunton; Baggy and Pilton 
groups, North Devon. Journ. Geol. Soc., vol. xxiii, p. 624. ‘* Abund- 
ant in the soft ferruginous sandstone of Marwood quarry.” (Sowerby, 
Geol. Trans., op. cit., Explan. of pl. 53. 
Lower Carponirrerous.— Coomhola,” Co. Cork, &. (W. H. B.) 
Fig. 3.—CucuLtt“a Harpineu, Sowerby. 
‘Trans. Geol. Soc., op. cvt., figs. 26,27. Phil. Pal. Foss., p. 40, pl. xviii., 
KK Oy OMe 
Original. Marwood Beds, Braunton, N. Devon. Mus. G. S. I. 
Upper Devontan.—Baggy and Pilton, N. Devon. (Etheridge.)  . 
Lower Carsonirerous.—‘* Comhola,” Co. Cork, &e. (W. H. B.) 
Fic. 4.—a, 6. MErGALopoN CucULLATUS, Sowerby. 
Min. Conch., vol. vi., p. 182, pl. dixviii. 
Phil. Pal. Foss., p. 37, pl. xvii., fig. 60. 
From Min. Conch., pl. dlxviii., a, exterior of left valve; 6, interior of ditto. 
Middle Devonian, Limestone, Bradley, near Newton Bushel, Devon- 
shire. 
Lower DEvontan.—Lynton group. 
MippLteE Drvontan.—Torquay, do. 
Gao: 
British Asssociation Report, 1852. Trans. of Sections, p. 43. Geol. Surv. 
Trel. ; Expl. Sheet, 147, &c., p. 16, fig. 3, a, b. 
L 
ANODONTA JUKESH, Forbes. 
