WENLOCK GROUP. 
131 






eee Reference to McCoy’s 
Drawers. Synopsis ; and Figures of Genera. 
FC p. 158. 
Gc4 
FOC Zethus, p. 157. 
Gd 
FC 
FC BE ie ig 15, p. 153: 
FC p. 160. 
Gd 
FC | As Odontochile caudata, p. 160. 
FC Portlockia, p. 163. 
Gd 
FC 


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

Encrinurus punctatus, Briinnich (Decade 7, 
Geol, Sury. t. 4, fig. 15, Siluria, 2nd ed. 
Foss. 14, fig. 10; 64, fig. 5, pl. 10, fig. 5). 
Encrinurus variolaris, Brong. (ib. 7, t. 4, figs. 
13, 14, Siluria, 2nd ed. pl. 18, fig. 9, Foss. 
64, fig. 6). Tail blunt, of few rings. 
Spherexochus, Beyrich. A most extreme form 
of Chetrurus, in which all the sculpture of 
the body rings is lost. 
Spherexochus mirus, Beyrich (Salter, Mon. 
Brit. Tril. t. 7, figs. 1—6, and Decade 7, pl. 
7, Siluria, 2nd ed. Foss. 64, fig. 1). 
Staurocephalus, Barr. An exaggerated Chei- 
rurus with a strongly clavate and peduncu- 
lated glabella. Body rings 10, tail pectinate. 
Staurocephalus Murchisoni, Barr. (Decade 11, 
Geol. Surv. pl. 5, figs. 1—4, Salter, Mon. 
Brit. Tril. p. 84, pl. 7, figs. 13—20). 
Phacops Downingiz, Murch. (Salter, Mon. 
Brit. Tril. pl. 2, figs. 17—25, Siluria, 2nd ed. 
Foss. 64, fig. 3, pl. 18, figs. 2, 5). 
Phacops Downingix, var. constrictus, Salter 
(Mon. Brit. Tril. p. 27, pl. 2, figs. 13—16). 
Phacops Stokesii, M. Edw. (Salter, Mon. Brit. 
Tril. p. 21, pl. 2, fig. 6, Siluria, 2nd ed. pl. 10, 
fig. 6). 
Phacops Musheni, Salter (Mon. Brit. Tril. p. 23, 
pl. 2, figs. 7—12). 

a, 539, figured specimen, 
Fletcher, Geol. Journ. Vol. 
vi.; a. 541, a. 542, labrum; 
a, 540 shews eyes well; 
Dudley, F.C. ; b. 732, Myd- 
dleton Park, Caermarthen. 
a, 537, fine rolled-up speci- 
men; a. 538 shews the la- 
brum in position; Dudley, 
F.C. 
a. 543, tail figured, De- 
cade 7, Geol.Sury., Dudley, 
F.C. 
> 
544, Dudley, F.C. 
a. 568, to a. 573, and 
a.575, a. 576, Dudley, F.C.; 
a. 888, fine specimen, Dud- 
ley, F.C. 
a. 574, Dudley, F. C. 
a. 578, Wenlock Shale, 
Dudley, F. C.; a. 895, Llan- 
gynyw Rectory, Welchpool; 
a. 887, Dudley, F. C. 
a. 577, rolled-up  speci- 
mens, a. 579, Dudley, F.C. 
17—2 
