50 JOURNAL OF THE GEOLOGICAL SOCIETY OF DUBLIN. 
lower beds. It contains Orthis crenistria, and Orthis Kellii , but 
no other fossils were got in it at this place. 
Moneyneany, in Londonderry, is seven miles west of Maghera, and 
four N.W. of Draperstown. A stream, which crosses the Dun- 
given road, forms the barony bounds here, and some red and 
purple shales overlying the Old Red Sandstone afford a few of 
the fossils found in the black shales. 
Moore, in Roscommon, is three miles east of Ballinasloe. The light 
gray limestone of this district produces abundance of fossils. 
Morera, in Leitrim, is four miles S.W. of Manorhamilton, on the 
Sligo road. Here, near the junction with the mica slate of 
Benbo mountain, fossils are found in the limestone and shale. 
Moyheeland, in Londonderry, is five miles S.W. of Maghera. The 
village of Draperstown stands on part of this townland. On 
the south bank of the Moyola river, a few yards above the forge 
bridge, very fine specimens of fish remains are got in a bed of black 
shale, at about the summer level of the water. Scales of Holopty- 
chius Portlockii, spines of Gyracanthus, and numerous large bones, 
were obtained; also a tolerably perfect specimen of a whole fish, 
somewhat farther up in the river, in a bed of black shale near the 
north bank. The black shale and slate in the Moyola at this 
place is part of a band which crosses the valley from Fallagloon on 
the N.E. by the forge bridge, to the White river on the S.W., 
being two to three miles long, and about a quarter of a mile wide. 
This band was supposed to be in the Old Red Sandstone, because 
that rock occurs to the west of it, and white sandstone to the east, 
at Gortahurk and other places, succeeded by gray mountain lime¬ 
stone near Desertmartin, all dipping the same way, eastward. The 
same species of fish remains occur in the black band ironstone near 
Glasgow, in the coal district there; and this circumstance, toge¬ 
ther with the colour and general lithological character of the shale 
itself, seems to be a presumption that this Moyola band of black 
shale is of the coal formation, and not belonging to the Old Red 
Sandstone. If so, it must be a mass which slipped down between 
two parallel faults, a circumstance not uncommon, and especially 
probable in a neighbourhood beset with dislocations. It has the 
basaltic protusions about Maghera covering it on the north-east 
end, and is terminated by the great greenstone of Slieve Gallion 
on the south west. Besides all this, a red sandstone covers this 
