6o 
Praeger — The Marine Shells 
inhabits a region. Many bivalves burrow deeply in sand and mud, and flourish 
out of reach of the naturalist’s dredge. When they die, the shells come up to 
the surface, and are thus thrown on shore by the waves, or taken by the dredge, 
in a fresh state. 
In conclusion, the writer expresses a hope that the following list may 
prove a reliable foundation for a more complete and extended paper on the 
Marine Mollusca of the North of Ireland, and that by showing the incomplete- 
ness of the record, it may encourage other workers to give some of their 
attention to this interesting subject. 
