EXPLANATION OF THE PLATES. 119 
Original. «a. A group of these small bivalved Entomostracan shells. 6. En- 
larged specimen, side view. Lower Limestone shale, Clabby, Co. Fer- 
managh. Mus. G. S.J. e. Do. end view from Ann. and Mag. Nat. 
Hist., vol. xv., pi. XX., fig. 2,2. 
CARBONIFEROUS.—Lower and Upper. C. L. Weston, Somerset. Frequent 
in Ireland in Lower Limest. shale, counties Derry, Tyrone, and Fer- 
managh; in Scotland, at Burdie House. 
Fic. 5.—a, 6. Entomoconcuus Scowrenrt, Jf Coy. 
Journ. Geol. Soc., Dublin, vol. i, pl. v., Syn. Carb. Foss. Irel., p. 164, 
pl. xxiii, fig. 4. 
Original. Carb. Limest., Castleknock, Co. Dublin. Collected by Francis 
J. Freeman, Esq. Mus. G. S. I. 
CARBONIFEROUS LimESTONE.—Bolland, Yorkshire ; Derbyshire; in Ireland, 
counties of Limerick, Kildare, Meath, and Dublin. 
PECILOPODA. 
Fic. 6.—Berinurvs Reeina, Baily. 
Geol, Surv. Ivel., Expln,. 137, p. 13, fig. 3. 
Ann. and Mag. Nat. Hist. 1863, vol. ii., pl. v., fig. 1, a—d. 
Original. From Coal Measure shales; Bilboa, near Carlow, Queen’s Co. 
Mus. G. S. I. 
Coat MEASuRES.—Queen’s County, and Lahinch, Co. Clare. 
Fic. 7.—Bettnvuzvs triLopiroipys, Buckland, sp. 
Bellinurus bellulus Kénig, cones fossilium sectiles (1820), p. 230, pl. 18. 
Limulus, Bridgewater Treatise, vol. i., p. 396; and vol. ii., p. 77, pl. xlvi’’,, 
fic. 3. Geol. Tr. 2 ser. 5, pl. xi, fig. 8. 
Original, From Gutta Percha cast. Coal Measures (Ironstone), Coalbrook 
Dale. Mus, G.S.1.. 
Coat Merasures.—Coalbrook Dale; Dudley; Morris’ Cat. Brit. Foss., 
p. 111. General Portlock in his Geol. Report on Londonderry, &e., 
p. 316, pl. xxiv., fig. 11, describes and figures a species from the Carb. 
Limest. shale of Maghera, Derry, which he hesitatingly refers to this 
fossil. Professor Morris includes this in his catalogue under the above 
specific name. On comparison it will, it is believed, be found distinct. 
PISCES.—CESTRACIONT ID. 
Fic. 8.—(?) Trisrycutus minor, Portlock. 
Geol. Rep., p. 464, pl. xiv., fig. 6. Cat. of Brit. Foss., p. 346. Fish spine 
(Ichthyodorulite) from Geol. Rep., op. cit. Carb. Limestone shale 
Kesh, Fermanagh. 
