F. R. Cowper Reed — Geology of Waterford. 



509 



about 60°. (Fig. 2.) I have collected the following fossils from 

 them : — 



Cahjmene Bhtmenbachi, Brong. 

 G. brencapitata, Portl. 

 Cybele, sp. 



Phacops Jmnesi, Portl. 

 Orthis calligramma, Dalm. 



Fleet ambojiites sericea, Sow. 

 Rafinesquina deltoidea, Conr. 

 Stenopora fibrosa, Goldf. 

 8. (?) lycoperclon, Hall 



In the Survey Memoir it appears that the fossils from "locality 20" 

 come principally from the sandy limestones ; but a slight uncertainty 

 prevails on this point, since on p. 19 of the Memoir the beds are 

 described as "grey calcareous slates," while on p. 28 they are called 

 " compact bluish limestones " and " brown shaly beds." The 

 Newtown Cove fossils are also included in the description, but they 

 come from beds which are stratigraphically rather higher and have 

 a somewhat different faunistic faoies, though a few species are 

 common to them and the sandy limestones. The following fossils 

 in the Survey and other collections seem to come from these sandy 

 limestones : — 



Ampyx mammillatus, Sars. 

 Asaphus gigas, De Kay 

 Calymene brevicapitata , Portl. 

 Cybele verrucosa, Dalm. 

 Encrinurus sexcostatus. Salt. 

 Illcenus Boivmani, Salt. (?) 

 Lichas, sp. 



Phacops Jamesi, Portl. 

 P. truncato-caudatus , Portl. 

 Pemopleurides Colbii, Portl. (?) 

 Trinucleus seticornis. His., var. 

 Phyllopora Hisingeri, McCoy 



(?) 



Ptilodictya dichotoma, Portl. 



Porambonites inter cedens, Pand. 



Plectambonites sericea. Sow. 



Orthis biforata, Schloth. 



0. crispa, McCoy 



0. elegantula, Dalm. 



Pafinesquina deltoidea, Conr. 



R. expansa, Sow. 



Ci/rtoceras (?) inceqiciseptum, Portl. 



Gonularia, sp. 



Glyptocrinus, sp. 



If the foregoing lists are compared with those of the fossils from 

 Pickardstown and Quillia, no important differences are apparent, 

 except in the relative abundance of some forms such as Phacops 

 Jamesi, which is I'are near Tramore, while extraordinai'ily abundant 

 at the other localities. This might be due to the less calcareous 

 character of the Tramore beds rather than to any difference in the 

 age of the strata, but the occurrence of the forms Ampyx mammillatus 

 and Bemopleurides Colbii may indicate a slightly higher horizon, 

 since these genera are so prevalent in the overlying Newtown 

 Cove beds, and are absent at Pickardstown, etc. Moreover, since 

 the Tramore beds pass up into the Newtown Cove beds, whereas at 

 Pickardstown a felsite immediately overlies the fossiliferous beds, 

 it is probable that the latter correspond only with the lower part 

 of the coastal series. Black slates underlie the calcareous fossi- 

 liferous beds in both localities, and there is no reason to doubt 

 that they are of the same age, though palgeontological evidence is, 

 so far, unfortunately wanting. The correspondence in the faunas 

 of the Tramore, Pickardstown, and Quillia rocks is so great that it 

 seems impossible to do otherwise than group them together in 

 the same assise ; the dissimilarity in the bionoraic conditions which 

 is indicated by the difference in the lithological character of the 



