38 
Dark earthy slates (with Graptolites) of Wexford, and parts of Waterford and Clare. 
UPPER CAMBRIAN. 
Lower Bata. Irish Collection. 
The lower Bala is not 
greatly fossiliferous in Ireland, and the Lingula flags and Tremadoc are absent, so far as yet known; the Lower Bala 
resting on the Harlech Group in Wicklow. 


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


Graptolites. 
Dade 
Tp She 
Trilobites. 
Numbers and Localities. 

Diplograpsus mucronatus, Hall (Pal. N. Y. 
Vol. 1. p. 268). Whether this species be 
truly named seems matter of doubt. The 
cells are closer than in the specimens from 
Wigtonshire. 
Diplograpsus ramosus, and perhaps D, pristis. 
Barrandia Portlocki, Salter. Ogygia Port- 
lockt in Decades Geol. Surv. No. 2, pl. 7. 
Asaphus dilatatus, Portlock, Geol. Rep. t. 
24, figs. 1, 2, 7 (not the rest); Barrandia in 
Salter’s Monograph, Brit. Tril. pl. 19, figs. 
6—10. The short tail axis and broad gla- 
bella distinguish Barrandia. 
Orthis striatula, Emmons (Mem. Geol. Surv. 
Vol. u1 pl. 13, figs. 10—14). The flat form, 
and fine striz curved up to the hinge line, 
mark this as distinct from O. testudinaria, 
its companion, and the teeth are different 
from those of O. elegantula. 

Belvoir, Clare. Gibbet Hill, 
Tinnaglough, Wexford. 
(Geol. Surv. Ireland.) 
Waterford —_ (Ballintray). 
(Geol. Surv. Ireland.) 
Newtown Head, Water- 
ford. Both Lower and 
Middle Bala appear to 
occur in this important 
locality. (Sir R. Griffiths.) 
Newtown Head, Water- 
ford. 
