74 THE INVERTEBRATE FAUNA 



Montacuta substriata (Mont.). 



On Spatangus purpureus, off Inchkeith 

 (Com. Mar. Zool.) ; off the Isle of May, on 

 Spatangus purpureus, 1854 (M'B.). 



M. bidentata (Mont.). 



Single valves on Edinburgh shores. 

 Perfect specimens not uncommon in 

 drifted shell sand at North Berwick (M.). 



M. ferruginosa (Mont.). 



Firth of Forth (F. and H., and M'B). 

 Single valves in drifted shell sand at 

 North Berwick (M.). 



Lasaea rubra (Mont.). 



North Berwick shore ; not a plentiful 

 shell here (M.). 



Kellia suborbicularis (Mont.). 



In drifted shell sand at Dunbar and 



North Berwick. I have also taken it 



living at North Berwick in tangle root 



(M.). 



We have dredged this species in the 



Firth. 



Mr M'Murtrie informs us that at Aln- 



mouth, Northumberland, he has taken 



both the species and the variety lactea, 



living in soft stone in rock pools at low 



water. 



LUCINIM. 



Lucina lorealis (Linn.). 



Firth of Forth (MR). 



Occasionally on the beach at Newhaven, 



North Berwick, etc. (M.) ; Elie (nob.). 



Axinus flexuosus (Mont.). 



Firth of Forth (MB. as Lucinaflexuosa), 

 Cramond Island, and adjoining shore, 



