Fic. 
6. 
7—17. 
18 —27 
28—30 
Silemsee 
$33)¢ 
34—39. 
40—44. 
45—48. 
49—52. 
13—59 
PLATE III. 
SILURIAN SPICIES. 
Lingula Lewisii, Sow. Fig. 1, Aymestry limestone, Sedgley, between Dudley and Wolverhampton. 
Fig. 2, Upper Ludlow, Whitecliff, near Ludlow. Collection of Mr. Lightbody. 
Fig. 3, Aymestry limestone, near Ludlow. Collection of Rev. H. G. Day. 
Fig. 4, specimen referred to L. Lewisii (2), by Professor M'Coy, at p. 24 of 
‘Synopsis Sil. Foss., Ireland,’ and stated to be from Shanballymore, Outerard, 
County Galway. Collection of Sir R. Griffith. Figs. 5, 6, interior of both 
valves, from Aymestry limestone, Sedgley. 
Symondsi, Salter. Figs. 7, 8, Lower Ludlow, Ledbury. Mus. Geol. Survey, London. 
Fig. 9, id. Collection of Dr. Holl. Figs. 10, 11, Wenlock shale, Buildwas, 
near Wenlock. Mus. Geol. Survey, London. Fig. 12, Wenlock shale, near 
Dudley. Fig. 13, Upper Llandovery, Penlan, Llandovery. Geol. Survey 
Mus. Fig. 14, Wenlock shale, from Alfric Pond (base of the die-earth), Malvern. 
Mus. Geol. Soc. Fig. 15, Woolhope limestone, The Wych, Malvern. Fig. 
16, id., Sandbanks, Presteign. Fig. 17, Upper Llandovery, Mandinam, Llan- 
dovery. Figs. 15—17, Mus. Geol. Surv., London. 
attenuata, Sow. Fig. 18, after original figure (‘Sil. Syst.,’ pl. xxii, fig. 13), Llandeilo 
flags, Landeilo and Shelve. Mus. Geol. Soc. Fig. 19, same locality. Fig. 20, 
Coed Sion Llangadoc. Both in Mus. Geol. Survey, London. Figs. 21, 22, 
Shelve. Collection of Mr. Morton. Fig. 23, Upper Llandeilo, West of 
Meadowtown. Collection of Mr. Lightbody. Fig. 24, 25, Baleletchie, Girvan, 
Ayrshire. Fig. 26, Builth. Collection of Mr. Morton. Fig. 27, small speci- 
men (‘Sil. Syst.,’ pl. xxii, fig. 13), Llandeilo flags, Rorington, Salop. Mus. 
Geol. Soc., London. 
longissima, Pander! Fig. 28, from Caradoc shales, Moelydd, Wales. Collection of Mr. 
D.C. Davies. Fig. 29, from Ketch Bridge, near Llanfyllin. Collection of 
Mr. Prosser. Fig. 30, specimen described as ZL. longissima, at p. 253 of 
‘ Brit. Pal. Foss.’ Woodwardian Museum, Cambridge. 
obtusa, Hall? Fig. 31, specimen so identified and described by Prof. M‘Coy, ‘ Brit. Pal. 
Foss.,’ pl. i, p. 253. Fig. 32, Caradoc beds, Marshbrook, Salop. Collection 
of Mr. Wyatt-Edgell. [Are not these two specimens referable to L. ovata, 
M‘Coy ?] 
attenuata, Sow.? Specimen described as L. curta, Conrad, in ‘ Brit. Pal. Foss.,’ p. 251. 
Bala flags, Wellfield, Builth. Woodwardian Mus., Cambridge. 
brevis, Portlock. Fig. 34, original figure (‘Geol. Rep. of Londonderry, &c.,’ p. 443, 
pl. xxxii, fig. 2), Caradoc beds, Desertcreat, Tyrone. Fig. 35, Skiddaw slates, 
Outerside, near Keswick, Cumberland. Collected by Prof. Harkness. Fig. 36, 
specimen labelled “ Z. brevis,” by Portlock. Desertereat, Tyrone. Mus. Geol. 
Survey, London, Figs. 37—39, specimens named “ L. drevis,” in Mus. Geol. 
Survey, Ireland. Fig. 37, same locality. Fig. 38, Newton Head, Waterford. 
Fig. 39, Tramore, Waterford. 
lata, Sow. Fig. 40, original specimen (Sil. Syst.,’ pl. viii, fig. 11), Lower Ludlow, Elton. 
Mus. Geol. Soc., London. Fig. 41, another example, from the same locality. 
Fig. 42, Ludlow shale. Pentland Hills. Collection of Mr. D. J. Brown. 
Fig. 43, Ludlow, Hale’s End, near Malvern. Collection of Dr. Holl. Fig. 44, 
Lower Ludlow, Vinnal Hill, Ludlow. 
striata, Sow. Fig 45, after original figure (‘ Sil. Syst.,’ pl. viii, fig. 12), Lower Ludlow, 
Aymestry. Mus. Geol. Soc. Fig. 46, Lower Ludlow, Ledbury. Mus. Geol. 
Survey, London. Figs. 47, 48, Wenlock shale, Dudley. Same Museum. 
Ramsayi, Salter. Fig. 49 (‘Siluria,’ 2nd ed., p. 55, Foss. 10, fig. 20, reduced figure), 
Llandeilo flags, Abereiddy Bay, Pembrokeshire. Figs. 50—52, same locality. 
Mus. Geol. Survey, London. Fig. 51, ib. Collection of Mr. Lightbody. 
(Lingulella) lepis, Salter. Figs. 53—56, after original figures (‘Mem. Geol. Survey,’ 
vol. iii, p. 334), from Lower Tremadoc, Borth Wood, Portmadoc, and Mus. 
Geol. Survey, London. Fig. 57, interior. Fig. 57 a, enlarged figure. Same 
locality and Museum. Figs. 58, 59, distorted specimens. Fig. 59, Moel-y- 
Gest, Tremadoc, north-west side. _ Geol. Survey Museum. 
