98 THE INVERTEBRATE FAUNA 
Nassa tincrassata, var. simulans. 
Occasionally at North Berwick and Gran- 
ton (JZ). 
PLEUROTOMID. 
Defrancia linearis (Mont.). 
Common on the beach at North Berwick 
and Dunbar (JZ). 
D. linearis, var. aequalis. 
| Somewhat common on the beach at North 
Berwick and Dunbar (JZ). 
Pleurotoma costata (Donov.). 
Firth of Forth; in shell sand at Gran- 
ton, Longniddry, North Berwick, and 
Dunbar (J). 
We have found this species on the beach 
near Aberdour. 
P. septangularis (Mont.). 
Firth of Forth (£B.). 
P. rufa (Mont.). 
Wardie and North Berwick, in shell 
sand (J/.). 
P. turricula (Mont.). 
Firth of Forth (7‘B.); on the beach at 
Wardie, Longniddry, North Berwick, and 
Dunbar (JZ); Bass Rock, 24 fathoms 
(Metz. and Mey.). 
P. turricula, var. rosea. 
North Berwick and Dunbar (JZ). 
P. trevelyana (Turt.). 
Bass Rock, 24 fathoms (Metz. and Mey.) ; 
Firth of Forth (Andrew). 
CYPRAIDA. 
Marginella laevis (Donov,). 
Laskey gave Dunbar as a locality, but his 
specimen was a tropical species (Dr Gwyn 
Jeffreys). 
