LOCALITIES OF IRISH CARBONIFEROUS FOSSILS. 25 
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bend in the river, in which the dithyrocarus is found, of two or 
more species. Farther eastward, under a high bank in the river, 
a black shale occurs, in which Modiola Macadami is abundant, 
as well as other small shells of the shales. The rock here lies 
nearly level, dipping at an angle of 3° to 5° eastward down the 
river, so that the same bed can be often followed for several yards 
in the banks of the river. 
Alteen Stream, in Cavan, lies one mile N.W. of Swanlinbar; both 
limestone and slate occur in this townland. 
Altmush, in Meath, is situated two miles north of the village of 
Nobber. The rock here is black shale in the vicinity of light 
gray limestone; it contains Posidonice , and other fossils of the 
fine black shale of the millstone grit. 
Annagh, in Cork, is four miles S.W. of the town of Charleville, on 
the limestone, which is fossiliferous. 
Annaghilla, in Tyrone, is situated three miles S.W. of Bally- 
gawley. The rock here is arenaceous limestone. It occurs at 
the road side, under about four or five feet deep of bog. The 
rock is excavated for lime, and for building. Also, farther 
N.W., some of the beds appear to be composed of a mass of shells. 
Orthis crenistria and Orthis Kellii are the principal, and those two 
fossils are easily distinguished here from each other. 
Annahugh, in Armagh, lies about six miles N.E. of Armagh, and two 
miles east of the village of Loughgall. The rock is limestone, and 
dips generally N.W. about 20°. 
Araglin Bridge, in Cork, is situated two miles N.E. of Fermoy. 
The rock is yellowish sandstone, in which black shale occurs, 
which contains Cypricardia and a few other fossils. 
Ardagh, in Meath, lies five miles south of Carrickmacross, and two 
miles N.W. of Drumcondra. This is a high hill of light gray 
limestone, beds massive, and in some places very rich in fossils. 
A quarry has been excavated on the road-side, at the eastern base 
of the hill, in which the fossilist will gain a good return for his 
labour. Atrypa excavata is abundant, though scarce, in other 
places. The bare rock projects in cliffs on the eastern brow of 
the hill, and in this, as well as in the loose stones and the fence 
walls, numerous species are found. This is the only locality in 
which Producta striata has been got. 
Ardatrave, in Fermanagh, is two miles S.W. of Kesh village, on 
