36 



is due to my friend Mr. Swanston, a gentleman who has devoted 

 much of his time to the zoology and palaeontology of the north 

 of Ireland. Several very fine examples of this fossil have been 

 met with. 



" Cypricardia sinuata — This fossil occurs in great profusion in 

 the thin-bedded limestone under Rose Cottage. It is also to be 

 met with, though more sparingly, in the Carboniferous Shales all 

 along the shore ; it bears a general resemblance to Bakewellia 

 antiqua of the Permian rocks. A careful examination of a num- 

 ber of specimens has, however, satisfied me that it should be re- 

 ferred to the above species. 



" Modiola Macadami — Many fine examples of this fossil have 

 been met with in the dark grey shales under Mayfield Cottage, as 

 also at several of the Carboniferous Slate localities along the shore. 

 Specimens are not unfrequently found exhibiting beautiful irides- 

 cent coloring. 



" Lithodendron junceum — This coral occurs plentifully in the 

 limestones under Rose Cottage and Mayfield Cottage, as also in 

 the Carboniferous Shales west of the Pier at Cultra ; fragments of 

 it are occasionally to be met with in all the Carboniferous Shales 

 along the shore, and in this state have been taken by some writers 

 for Serpula. 



" Spirorbis globosus —This little annelid is to be met with every- 

 where along the shore, attached to fossils. Sir R. Griffith records 

 S. omp/ia/odus and S. intertnedius as occurring in these beds. All 

 those, however, seen by me are referable to S. globosus. Examples 

 of this fossil are often found with the underside exposed, and, 

 one so seen, looks not unlike a different species with reversed 

 whorls. It is more than probable that it was in this way that 

 S. intermedins got recorded. 



il Natica ampliata, Pleurotomaria Yvanni, Murchisonia angulata, 

 Macrocheilus acutus — These, with several other Carboniferous 

 gasteropoda, have been met with in the thin-bedded limestone 

 under Mayfield Cottage. 



" As already shown, all the fossils found in the so-called Permian 

 beds under Rose Cottage, as also a still greater number found in 



