ZOOLOGICAL AND BOTANICAL ASSOCIATION. 22 I 



met with a fine specimen, in the dead state, in a piece of limestone, in a 

 garden in the neighbourhood, which could not be traced as to whence it 

 came ; but possibly it was brought from the rolled stones of the shore, 

 on account of its being burrowed so extensively as to appear like a 

 curious piece of fret- work. 



The following is a Table showing the distribution of such species 

 as have been found in beds above the level of high-water, in the neigh- 

 bourhood of Belfast. It is the result of a few careful examinations of 

 the localities indicated, and is given for the purpose of stimulating fur- 

 ther research. Attention was drawn to the presence of recent shells in 

 these raised sea-beds by Mr. Mac Adam, in his paper read before the Geo- 

 logical Society of Dublin, before alluded to, where he adverted especially 

 to meeting with them in the cuttings for the County Down Railway 

 from Belfast to Comber, at various levels, to the maximum of 80 feet 

 above high- water. I have obtained from him the names of the species 

 ho found, and have included them below. Mr. Hyndman, in his Report, 

 has also recorded the occurrence of Littorina littorea in the sandy beach 

 of the River Blackstaff, two miles above the present highest reach of the 

 tide. The species found at the raised beach of White Abbey have been 

 furnished me by Louis Valentine, Esq. I owe my thanks also to John 

 Owden, Esq., for the opportunity of recording the species of the former 

 beach at Sea-Park. 



There have been enumerated 103 species in all, typical specimens of 

 nearly every one of which are preserved in my cabinet. Among the 

 specimens are a number of remarkable individuals, in consequence of 

 their inveterately retaining the surrounding matrix, which envelops 

 them so firmly that it has assumed the consistence of stone, and would 

 require a hammer to disengage it ; but this, again, would be certain to 

 injure the enclosed shells, which are very friable, and in some instances 

 have dropped away, leaving beautiful casts. Many pieces of this har- 

 dened clay and sand occurred scattered through the deposits, generally 

 containing one or more enclosures, and had the appearance of being 

 rolled ; but whether this had occurred during their deposition, or was 

 the result of weather after being thrown up in the embankments where 

 I found them, as I had not the good fortune to meet with any in situ, I 

 cannot determine. They certainly presented a very distinct appearance 



