WENLOCK GROUP. 

Case and 
Column of 
Drawers. 
Reference to McCoy’s 
Synopsis : and Figures of Genera. 
Names and References; Observations, &c. 


Gd 
FC 
Gc4 
Gcé6 

p. 167. 

H. Knighti, p. 168. 


Forbesia, p. 174. 

Calymene tuberculosa, Salter (Decade 2, pl. 8, 
figs. 1—8, Siluria, 2nd ed. 18, fig. 11). Dis- 
tinguished by the narrow axis and_hori- 
zontal pleura’, also the produced front. 
Homalonotus, Konig. A large Trilobite very 
closely related to Calymene, but with the 
axis so broad and so little raised above the 
pleurz as to make the back even (ouanos). 
Homalonotus delphinocephalus, Green (Sil. 
Syst. t. 7 bis, fig. 1, Siluria, Foss. 18, fig. 1, 
Salter, Mon. Brit. Tril. pl. 11, figs. 1—11). 
Abundant in Dudley limestone. The tail 
has a very short mucro. 
Homalonotus Johannis, Salter (Mon. Brit. Tril: 
pl. 12, fig. 11, pl. 18, figs. 1—7). 
Tlenus insignis, Hall (Salter, Mon. Brit. Tril. 
t. 27, figs. 6, 7. ll. Barriensis, Sil. Syst. 
and Siluria, 2nd ed. pl. 17, figs. 9—11). 
Differs by gibbous head, position of eyes, 
and all characters from the common Wool- 
hope species, J. Barriensis, Murch. 
Cyphaspis, Burmeister. A genus of small trilo- 
bites related to Proetus, but with basal 
glabella lobes strongly circumscribed, and 
fourteen or fifteen body rings, rarely eleven 
or twelve. 
Cyphaspis megalops, McCoy. (Decade 7, Geol. 
Surv. pl. 5, Siluria, 2nd ed. Foss. 64, fig. 2). 
Proetus, Steininger (Mem. Geol. Soc. France). 
Allied to the terminal forms (Carboniferous 
era) of the Asaphus group of Trilobites. 
It has a rostral shield like Phillipsia and 
Cyphaspis, and the species vary very much 
in outline and number of body rings, eight 
to twelve (Barrande) ; a. 700 is one of the 
undescribed forms. 
Proetus, spp. Two or three undescribed forms 
from Dudley and Wenlock, and Tortworth 
(Falfield) and Ledbury. 


Numbers and Localities. 
b. 734, Wenlock Shale, 
Burrington, Cheney Long- 
ville, 
b. 738, Falfield, Tortworth 
(Earl Ducie) ; a.555, Dud- 
ley, presented by Captain 
Fletcher; a. 556, cast of 
Blackwell's specimen, Geol. 
Surv. Coll. 
a. 693, Myddleton Park, 
Caermarthen. 
a. 580, Dudley, F.C.; a. 
581 (rostral shield of do.); 
a. 653, good, Dudley, F. C. 
a. 545, a. 546, a. 547, Dud- 
ley, F.C.; a. 689, Dudley, 
described by McCoy. 
a. 700, Dudley, F.C. 
