Case and 
Column of 
Drawers. 

G 
case 
Gi 
Gi 
Reference to McCoy’s 
Synopsis: and Figures of Genera, 
ARENIG OR SKIDDAW GROUP. 

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




SS 

Asaphus. 



AXgiina caliginosa, ib. (Mem. Geol. Surv. Vol. 111. 
p. 318, pl. 11, fig. 10). The genus is known 
by its large eyes covering the cheeks, 
AMglina Boia, Hicks. A small smooth species, 
the head and tail like Agnostus. 
Aigiina binodosa, Salter (Mem. Geol. Surv. 
Vol. 111. p. 317, pl. 11 8, fig. 3. Decade x1. 
PL. 4, fig. 1—6). Two tubercles on the third 
body segment. ; 
AXglina grandis, id. (Mem. Geol. Surv. Vol. 111. 
p. 317, pl. 12, fig. 11). Two inches long; 
with rounded tail and granulated surface to 
head, 
Ogygia Selwynii, id. (Mem. Geol. Sury. Vol. 11. 
p- 313, pl. 11 8, fig. 5), The most character- 
istic trilobite of the Arenig group; and the 
first one found by Prof. Sedgwick in 1843. 
Ogygia peltata, id. (Mon. Brit. Tril. 1865, 
pl. 25*, fig. 2). A large fine species, resem- 
bling much the great trilobites of this genus 
in the slates of Angers. (0. Desmaresti, &c.) 
Ogygia 
Ogygia bullina, id. (Mon. Brit. Tril. ib. fig. 1). 
The glabella is much swelled in front and 
narrowed behind. 

, Sp. long narrow axis to tail. 
Asaphus solvensis, Hicks MSS. A small spe- 
cies with smooth tail-piece. 
Asaphus Menapi, Hicks (undescribed). A large 
species, with smooth tail-piece, A saphus be- 
comes abundant in the Arenig group. 
Asaphus, sp. with ribbed tail. 
MOLLUSCA. 
Strophomena, sp. fine strix. 
Lingula petalon, Hicks MSS. 
Ty Obry, Portmadoc (abun- 
dant), Mr. Ash. b. 350, 
351. (Mr, Homfray.) 
a. 297, Whitesand Bay, St. 
David’s. (Dr. Hicks.) 
W. of Stiper Stones, 
Shelve. (Mr. Lightbody.) 
a, 53, Whitesand Bay, St. 
David's. (Dr. Hicks.) 
a. 54, W. of the Stiper 
Stones. (Mr Lightbody.) 
a. 55, Tai-hirion, W. of 
Arenig. (A. Sedgwick and 
J. W. Salter.) 
a. 50, Whitesand Bay, St. 
David's. (Specimen figured 
in Mon. Brit. Tril.) 

a. 356, Whitesand Bay. 
(Mr. Homfray.) 
a. 49, Whitesand Bay. 
(Specimen figured in Mon, 
Brit. Tril.) 
a. 293, Tremenheere, near 
Solva; Lower Arenig rocks. 
a, 469, 470, Ramsey L, St. 
Dayid’s, N. End. Base of 
group. (Dr. Hicks.) 
Upper Arenig rocks, White- 
sand Bay. (Dr. Hicks.) 
Carn Goran, Cornwall. 

a, 294, Arenig rocks of 
| Whitesand Bay. 
