ZOOLOGICAL AND BOTANICAL ASSOCIATION. 217 



Cerithium reticulatum (Da Costa). 

 Was perhaps the most abundant of the smaller shells in the beds. 

 One somewhat distorted specimen was met with. 



It is still a member of the Fauna of the neighbourhood. 



Scalaria Trevelyana {Leach). 



A tolerable number of this species was collected. It is one of the 

 species which are not present in the bay in the living state, nor indeed 

 do I know any habitat nearer than Magilligan on the north coast of 

 Ireland. 



Eulima subulata ? 



An individual of this genus was met with, but having been lost, I 

 refrain from referring it to any species by the aid of memory merely. 

 As far as I can recollect, however, it most resembled Subulata, a species 

 which still occurs in the neighbourhood in the dead state. 



Odostomia eulimoides (Hanley). 

 "Was met with sparingly, not at all corresponding to the numbers in 

 which it at present exists in the bay, if we may judge from the dead 

 specimens cast up and dredged. 



Natica monilifera (Lamarck). 

 Several individuals of this species occurred to me. It is now cast 

 up on the shores of the bay in the dead state. 



Natica nitida (Donovan). 

 Was found frequently in the sand of the deposits. We have it in 

 the harbour as a living species. 



Murex erinacem (Linneui). 

 Was constantly met with. The length of the largest individual 

 found was one inch and five-eighths. 

 It occurs in the harbour at present. 



Purpura lapillus (Linneus). 

 Two varieties of this species occurred in considerable numbers, one 

 rather the typical form than a variety, and the other of rather produced 

 shape. 



