Fic. 
1—6. 
7 
8. 
9—14. 
15—18 
19—23. 
24—27 
28—35 
36—44. 
PLATE II. 
SILURIAN SPECIES. 
Lingula crumena, Phillips. Various ages and shapes. Lower Llandovery, Howler’s Heath. 
99 
Mus. Geol. Survey, London. 
squamosa, Holl. Fig. 7, nat. size. Fig. 7a, enlarged, and slightly restored (described, 
but not figured in vol. xxi of ‘ Quart. Journal Geol. Soc. London,’ p. 102), 
from the Hollybush Sandstone of the Malvern Hills. Collection of Dr. Holl. 
pygmea, Salter. After the figure in ‘Geol. Journal,’ vol. xxi, p. 101. In the Black 
Shales (Upper Lingula-flags), Malvern. 
tenuigranulata, M‘Coy. Fig. 9, original figure (Brit. Pal. Foss., pl. iL, fig. 8). Schists 
of Alt-yr-Anker, Meyfod. Woodwardian Museum, Cambridge. Figs. 10—14, 
different specimens from the Bala schists, near Llanfyllin. Figs. 12, 13, 
Collection of Mr. D. C. Davies. Fig. 11, Peel Park Museum, Salford, 
Manchester. Fig. 12 6, a portion of shell greatly magnified. 
granulata, Phillips. Fig. 15, nat. size. Fig. 15 a, magnified, and after original figure 
(‘Mem. Geol. Survey of Great Britain,’ vol. ii, pl. xxv), Llandeilo flags, 
Dynevor Park. Mus. Geol. Survey, London. Fig. 16, a large example 
from the Middle Llandeilo flags. Llandeilo; Collection of Mr. G. H. 
Morton. Fig. 17, same locality. Collection of Mrs. Branwell. Fig. 18, 
from Dynevor Park. Collection of Mr. Wyatt-Edgell. 
ovata, MCoy. Fig. 19, original figure (‘Synopsis Sil. Foss. Ireland,’ pl. iii, fig. 1), 
Caradoc shale, Ballygarvan Bridge, Wexford. Fig. 20, from Caheranearta, 
Chair of Kildare. Collection of Sir R. Griffith. Fig. 21, Caradoc-beds, 
Marshbrook. Collection of Mr. Lightbody. Fig. 23, same formation. 
Horderly, Salop. Collection of Mr. Wyatt-Edgell. 
parallela, Phillips. Figs. 24, 25, Upper Llandovery, Gunwick Mill. Mus. Geol. Survey, 
London. Figs. 26, 27, from same formation. Eastnor Park, near Malvern. 
Collection of Mr. H. Wyatt-Edgell. 
cornea, Sow. Fig. 28, after original figure (Sil. Syst.,’ pl. iii, fig. 3), Passage-beds, Tin — 
Mill, Downton. Mus. Geol. Soc., London. Fig. 29, Passage-beds, Railway, 
near Ludlow. Figs. 30—34, from the same beds. Mus. Geol. Survey, London. 
Fig. 32, Brockhill, Ludlow. Mus. Geol. Surv., London. Fig. 33, specimen 
identified as LZ. cornea (‘Synopsis Sil. Foss. Ireland,’ p. 24), Ludlow slates, 
Doonquin (or Dunquin), Dingle, County Kerry: Collection of Sir R. 
Griffith. Fig. 35, interior (enlarged); Norton, near Ludlow. Collection 
of Mr. Lightbody. 
minima, Sow. Fig. 36, from the Trochus-bed (Upper Ludlow), Lesmahago, Lanarkshire. 
Fig. 37, Upper Ludlow (under bone-bed), Ludford Lane, near Ludlow. 
Fig, 42—44, Uppermost Ludlow, Birkenhead Burn, Lesmahago (ZL. ungui- 
culus, Salter). Mus. Geol. Survey, London. Figs. 38—41, Downton 
Sandstone. Old Lemster Road, near Ludlow. 
