

Go 

Reference to McCoy’s 
Synopsis: and Figures of Genera. 
UPPER CAMBRIAN. 
Names and References; Observations, &c. 


Glauconome, p. 49. 
Pl. 16, fig. 16, p. 46. 
Pl. 16, fig. 15, p. 46. 
do. 
Worm-tubes. 
p- 63. 
T. annulatus, p. 63. 
it 
© 
Pl. 1 &, fig. 3, p. 136. 
Trilobites. 
Portlockia, p. 163. 


Omphyma turbinata, Linn. (Edw. 
Monogr, Brit. Fos. Corals, pl. 69, 
fig. 1). The largest and most 
common of all the cup-corals, 
ranging from this formation to 
the Wenlock, where it is abundant. 
Siluria, 3rd ed. pl. 39, fig. 11. 
Ptilodictya, sp. 
Glauconome disticha, Goldf. (See 
Pet. Germ. t. 65, fig. 15). 

Ptilodictya explanata, McCoy (See 
p. 44). 
Ptilodictya costellata, McCoy (See 
p- 44). 
ECHINODERMATA. 
Cyathocrinus, cup of some species. 
ANNELIDA. 
Tentaculites ornatus, Sow. (Siluria, 
3rd ed. pl. 16, fig. 11). Appa- 
rently the common Dudley species. 
Tentaculites anglicus, Salter(Siluria, 
3rd ed. pl. 1, fig. 3). 7. annulatus, 
Sil. Syst. The Z. annulatus is a 
Devonian form without the fine 
longitudinal striz. 
CRUSTACEA — Phyllopoda and 
Trilobita. 
Beyrichia complicata, Salter (Mem. 
Geol. Sury. 11. pl. 19, fig. 9). 
The Trilobites are few in number, 
and of species chiefly common to 
Cambrian and Silurian rocks. 
Phacops Stokesii, Milne Edw. (Salter 
Mon. Brit. Tril. pl. 2, figs. 1—6). 
A common species at Dudley. 

b. 194, Llanfyllin. 
b. 195, Llanfyllin. 

Numbers and Localities, 
Upper Bala proper. Llandovery Group. 
b. 193, Mathyrafal, 
Meifod. 
Mathyrafal, Meifod; 
Pen-y-Craig, do, 
b. 197, Dalquorrhan, 
Mullock, Girvan, Ayr. 
b. 199, Mullock, Gir- 
van. 
b. 200, Pwllheli 
(? Llandovery, which 
formation must exist 
_ there), J. W.S. 
b. 201, Mathyrafal. 

b. 202, Mullock, Gir- 
van, 
