546 Scientific Proceedings^ Royal Dublin Society. 



Productus cf. plicatilis. 



,, fimhriato-pustulosus. 

 ,, aculeato-fimbriatus. 

 Ghonetes cf. papilionacea. 

 Leptaena sp. 

 Michelinia sp. 

 The suggested equivalence is also supported by the following con- 

 siderations : — 



(1) To the north of the Carlyan Eocks, and only separated from them 



by a short stretch of sand, are the Kate Eocks, which have been 

 shown to be probably equivalent to a part of the Holmpatriek 

 Limestone. 



(2) The Holmpatriek Limestone is succeeded downwards by a con- 



glomerate. The Carlyan Eocks are separated on the south by 

 the entrance to Eush Harbour from 100 feet of limestone 

 (Supra-Conglomerate Limestones) containing an almost identical 

 brachiopod fauna. This is immediately underlain by a 

 conglomerate. 

 Very little direct evidence can be adduced for correlation with C S. 



A Dipliyphylloid Lithostrotion occurs, and the Clisiophyllids (C. dublinense 



and spissum) are of C S type (cf. C. ingletonense), 



SUPRA-OONGLOMERATE LIMESTONES. 



Productus cf. conciiinus, Sow., vars., abundant. 

 „ aculeato-fimbriatus.^ 

 „ punctate- fimbriatus. 

 ,, fimbriato-pustulosus. 

 „ ef. pyxidiformis, De Kon. 

 sp. 

 Chonetes sp. (large, convex ; fragments abundant). 



„ squamata, sp. nov. 

 Leptaena " analoga " abundant. 

 Spirifer sp. abundant. 

 Dielasma cf. hastatum, Sow. 

 Camarophoria pleurodon, Phil. 

 These beds may be taken along with the Carlyan Limestone (C S), as the 

 brachiopod faunas are almost identical. 



' Quart. Journ. Geol. Soc, vol. kii, 1906, PI. .-sxx, fig. 6. 



