408 Proceedings of the Royal Physical Society. 



Pecten opercularis, Linn., dead valves. Stations 2. 

 „ tigri^ius, Mlill., dead valves. „ 5. 



;, striatus, Mtill., two living 



specimens. „ 5, 7. 



„ similis, Laskey, a single valve. „ 2. 



„ maximus, Linn., a living speci- 

 men. „ 3. 

 Lima suhauriculata, Mont., single 



valves. „ 5. 



Mytilus phaseoliiius, Phil., single 



valves. „ 5, 7. 



Crenella decussata, Mont., single 



valves. „ 7. 



Montacida sicbstriata (Mont.), living 



on Spatangics jpurjpiireiis. „ 5, 7, 7a. 



Lucina horealis, Linn., a single valve. „ 7. 



Astarte sulcata (Da Costa), fragments. „ 7. 



Scrobicularia prismatica, Mont., 



a single valve. „ 7. 



Mya truncata, Linn., a single valve. „ 7. 



Saxicava rugosa, Linn., var. arctica, 



living. „ 2. 



SOLENOCONCHIA. 



Dentalium entalis, Linn., dead shells. Stations 7, 7a. 



