252 MR. GARDINER AND PROF, REYNOLDS ON [May 1902, 
40° east, very fossiliferous, and containing especially numerous corals 
(Heliolites cuespitosa, Salt.). At a spot about 200 yards east of the 
point where this stream is crossed by the Ventry and Dunquin road 
these beds yielded :— ; 
Monticulipora sp. Spirifer plicatellus (Linn.). — - 
Strophonella funiculata, M‘Coy. Plectambonites transversalis, Wahl. 
Atrypa reticularis (Linn.). Pterinea squamosa, M‘Coy. 
Orthis eleganiula, Dalm. Cardiola interrupta (?) Sow. 
Dayia navicula, Sow. Lichas anglicus, Beyrich. 
Cyrtia exporrecta, Wahl. Crinoidal ossicles. 
Pentamerus sp. 
The rocks in the main stream, below the point where this 
tributary joins it, dip at 65° to 85° south 10° to 15° west, while in 
the tributary and higher up the main stream the general direction is 
easterly. There may be a fault between the two sets of exposures. 
Continuing up the main stream, we next come to a tributary 
which, running nearly due south from Ballynahow Common, enters 
on the right bank. In this are numerous exposures of brown 
calcareous sandstones dipping at 35° to 50° south 65° to 80° east. 
At about a quarter of a mile up this tributary, at a point where it is 
joined by a rayine from the east, is a very fossiliferous exposure of 
brown calcareous sandstones, from which we obtained :— 
Halysites catenularia (Linn.). _ LRhynchonella Wilsont, Sow. 
Heliolites cespitosa, Salt. Eh. sp. 
H. Murchisoni, M.-Edw. Atrypa reticularis (Linn.). 
Monticulipora poculum, Salt. Orthis elegantula, Dalm. 
Favosites aspera, VOrb. O. calligramma, Dalm., var 
F’, Forbesi, M.-Edw. Davidsoni, de Vern. 
Favositella interpunctata, Quenst. Chonetes (?) levigata, Sow. 
Lindstremia sp. Dayia navicula, Sow. 
Spirifer crispus, His. Pterinea retrofleca, Wahl. 
Sp. bijyugosus, M‘Coy. Crinoidal ossicles. 
Pentamerus undatus, Sow. 
The occurrence of Dayia navicula, Sow., a typical Ludlow species, 
associated with Orthis calligramma, var. Davidson, de Vern., and 
Pentamerus undatus, Sow., species which are not generally met 
with above the Llandovery, is noteworthy. The little ravine above 
mentioned shows the exposures of the same type of rock dipping at 
one point north 25° east ; and, when followed up for some 500 yards, 
bears sharply first northward and then north-westward, exposing 
more grey calcareous flags dipping north-castward at 47°, and 
containing 
Labechia conferta, Lonsd. Strophonella funiculata, M‘Coy. 
Atrypa reticularis (Linn.). 
Similar compact, grey and green, calcareous flags can be traced, 
more or less continuously, all the way to the top of Croaghmarhin, 
and also round the top of the hill and away along the ridge towards 
Ballyferriter ; until at a point nearly due west of the northernmost 
of the two hamlets called Marhinmore, the purple Dingle grits come 
on. Unfortunately, it is impossible to ascertain the character of 
the junction between the two series, owing to.the octurrence of a 
i. ke i ee ee ee 
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