118 EXPLANATION OF THE PLATES. 
PLATE XLII. 
FOSSILS OF THE CARBONIFEROUS ROCKS. 
CRUSTACEA.—TRILOBITA. 
Fie. 1.—a-d. Bracnymetorus Ovraticus, Vernueil, sp. 
Phillipsia, Vern. Geol. Russ., vol. ii., pl. xxvii., fig. 16. 
Original. a. Head from Carb. Limestone ; Ballysteen, Co. Limerick. 
b. age (Pygidium), from Carb. Limest; Dovedale, Derbyshire. Mus. 
G. . Ih 
CARBONIFEROUS LimesTonE.—Derbyshire; counties of Limerick, Kildare, 
Westmeath, and Dublin. The fossil named by Portlock Phillipsia 
Maccoyi, is identical with this species. 
Fic. 2.—a, 6, ¢. Puitiipsia pusturata, Schlotheim, sp. 
Asaphus pustulatus, Schlot. (1823), Nachtr. zur Petrefactenk. ii., p. 43. 
Phillipsia, De Koninck, Descr des Anim. Foss. Carb., p. 605, pl. hiii., 
fig. 5. 
OnieL a. Head. 6. Segment of body. c. Tail, from Lower Limestone 
shale; Hook Head, Co. Wexford. Mus. G.S. I. 
LowER CARBONIFEROUS TO CoaL MEAsurEs.—Carb. slate, near Bantry, 
Co. Cork. Carb. Limest., many localities in England and in Ireland; 
Coat MrasuREs, Ballycastle, Co. Antrim. 
Fig. 3.—a, 0. GRirFITHIDEs GLosicers, Phillips, sp. 
Asaphus, Geol. Yorksh., p. 240, pl. xxii., figs. 16—20. Griffithides, Geol. 
Rep., p. 311, pl. xi., fig. 9. 
Original. a. Entire specimen, side view. 6. Another example coiled up, 
Carb. Limest. Clane Quarries, Co. Kildare. Mus.G.S. 1. These are 
the original specimens figured by Dr. Oldham, in the Journ. Geol. Soc. 
Dublin, vol. iii., p. 188. pl. ii. 
CARBONIFEROUS LIMESTONE.—Many localities in England and Ireland. 
OSTRACODA. 
Fic. 4:—a, 6, c. Lyperpir1a susrecta, Portlock, sp. 
Geol. Rep., p. 316, pl. xxiv., fig. 13, a—e. LZ. Okent, Munster, sp. Jones 
and Kirby, Annals and Mag. of Nat. Hist., 1865. 
