126 transactions liverpool biological society. 



Fauna of the Scar. 



Besides Mussels, the usual animals that live in associa- 

 tion with them are found here, the chief enemies being 

 the boring Mollusca, which perforate the Mussel shells 

 and extract the juices and flesh of the animal, such as 

 the "Dogwhelk," Purpura lapillus, L. The "Whelk," 

 Buccinum undatum, L., the common "Edible periwinkle," 

 Littorina litorea, L., and a few common shore crabs, 

 Garcinus moenas, were also present, but none of them 

 in any great quantity. The examination of the mud 

 yielded seventeen species of Foraminifera representing 

 ten genera, ten species of Ostracoda representing six 

 genera, and eleven species of Copepoda representing ten 

 genera. The mud also contained fragments of shells, 

 spines of Spatangus, sponge spicules, a few diatoms and 

 a considerable quantity of vegetable debris. The following 

 list gives the names of the species of Ostracoda, Forami- 

 nifera and Copepoda. The Ostracoda and Foraminifera 

 from the Mussel beds at Piel, Duddon and Morecambe 

 have been identified by Mr. Thomas Scott, F.L.S., and 

 Dr. G. W. Chaster. 



Foraminifera, 



Lagena clavata, d'Orb. 



,, Icevis, Mont. 



,, striata, d'Orb. 



,, williamsoni, Alcock. 



,, squamosa, Mont. 



,, sulcata, W. and J. 

 Polystomella stria to-punctata, F. and M. 

 Polymorphina lactea, W. and J. 

 Planorbulina mediterranensis, d'Orb. 

 Nonionina depressula, W. and J. 

 Botalia beccarii, L. 



