138 
Case and 
Column of 
Drawers. 
Reference to McCoy’s 
Synopsis: and Figures of Genera. 
SILURIAN. 

Names and References; Observations, &c. 
Numbers and Localities. 

Gd3 
FC 
Gd2 
Gd3 
Gd3 
Gd2 
Gd2 
Gd3 


Spirifera subspuria, p. 195. 

p. 195. 
Spirifera cyrtena, p. 193. 
p. 193. 
Spirifera trapezoidalis, p. 196 
(Cyrtia). 




Spirifer elevatus, Dalm. (Davidson, Sil. Brach. 
p. 95, t. 10, figs. 7—11, S. octoplicatus, Sil. 
Syst. pl. 12, fig. 7, but S. elevatus, Salter in 
Mem. Geol. Surv. Vol. 111. p. 278). 
Spirifer plicatellus, Linn. sp. (Anomia, Linn. 
See Davidson’s learned discussion, Sil. Brach. 
p. 84, t. 9, figs. J9—12). 
Spirifer plicatellus, var. radiatus, Sow. (David- 
son, Sil. Brach. p. 87, pl. 9, figs. 1—6). 
Spirifer radiatus, Sow. Sil. Syst. pl. 12, 
fig. 6. Spirifer plicatellus, var. radiatus, 
Salter, Mem. Geol. Sury. Vol. m1. pt. 1, p. 
382, Siluria, 2nd ed. pl. 21, fig. 2. 
Spirifer plicatellus, var. globosus, Salter (Mem. 
Geol. Surv. Vol. m1. pt. 1, p. 382. Davidson, 
l.c. pl. 9, figs. 7, 8). 
Spirifer plicatellus, var. interlineatus, Sow. 
(Davidson, 1. c. p. 84, pl. 9, figs. 9—12, 
Siluria, 2nd ed. pl. 21, fig. 1). 
Spirifer crispus, His. not Linn. (Davidson, 
lc. pl. 10, figs. 13—15). Differs from 8S. 
elevatus chiefly in the fewer ribs and these 
being more deeply striate concentrically. 
The original figure of Linnzeus evidently 
represents S. sulcatus, His. Leth. Suec. p. 73. 
Spirifer, var. with faint ribs. 
Spirifer exporrectus, Wahl. sp. (S. trapezoi- 
dalis, Dalman, Siluria, 2nd ed. pl. 21, fig. 
3. Cyrtia exporrecta, Davidson, l.c. t. 9, 
figs. 13—24). Remarkable, even among 
Spirifers, for the extreme elevation of the 
beak. 

a. 789, interior dorsal v.; 
a. 790, interior ventral v.; 
a. 721, Dudley, F.C. 
b. 739, Keeper’s Lodge, 
Golden Grove; a. 725, 
young; a. 726, full grown; 
Dudley, F. C. 
a. 791 to a. 794, Dudley, 
RC. 
a. 787, Dudley, F.C.; b. 
740, Ledbury; b. 741, near 
Woolhope. 
b. 742, Whitfield, Tort- 
worth (Karl Ducie) ; b. 743, 
Clungunford, W. Shale. 
a. 795, Dudley, F. C. 
a. 722, a. 723, covered by 
Monticulipora; a. 724, ex- 
treme variety with great- 
ly elevated hinge; a. 788, 
interior parts, Dudley, 
F.C.; b. 744, Golden Grove, 
Llandeilo. 
