38 



Family FissmiELLAD^i:, Cuv, 



Genus Fissurella, Lam. 



F. Grseca. 

 In deep water ; not common. 



Genus Emarginula, Lam. 



E. Fissura, Flem. 



In deep water ; common. 



Family Cirrhobranchia. 

 Genus Dentalium, Auct. 

 D. Entalis, Auct. 



In deep water ; not common. 



Order Cyclobranchia, Cuv. 



Family Patellid.-e, Cuv. 



Genus Patella, Auct. 



P. vulgata, Auct. 



On the rocks between high and low water mark ; abundant. 

 P. pellucida, Mont, and var. (tevis.) 

 On fuci at low water; not common. 



Family ChitonidjE, Cuv. 

 Genus Chiton, Auct. 



C. fascicularis, Auct. 



On stones at low water mark and by dredging ; rare. 

 C. marginatus, Auct. 



On stones at low water mark ; common. 

 C. cinereus, Auct. 



On shells and stones in deep water ; common. 

 C. albus, Mont. 



With the last ; very rare. 



