8 THE MOLLUSCA OF THE FIRTH OF CLYDE. 
It has probably been frequently confused with the fol- 
lowing species, from which, however, it may readily be 
distinguished by the obliquity of the middle line. Forbes 
and Hanley figure the Pe esent species as Lima subauriculata. 
(F. and H. pL li, fig. 
British distr ibution. Hebrides, and western and northern 
coasts of Scotland; the Clyde being the most southern locality 
which I have noticed. 
Foreign localitves—Norwegian coast (Sars, and others). 
Mr. Jeffreys gives also (in the supplement to his British 
Conchology) the Mediterranean, Adriatic, and Aigean Seas. 
Lima subauriculata, Montagu. 
Pecten subauriculata, Montagu ; Lima elongata, Forbes. 
Habitat—In sandy gravel and nullipore off Craigmore, 
Bute; and on the Tan Spit, Cumbrae; in 8 to 15 fathoms. 
Rather scarce in a living state, but large single valves are 
common. Off Silvercraigs, Loch Fyne, it is common in 10 
fathoms in muddy sand and dead shells. 
British distribution—Throughout all our seas, not un- 
common, but full-sized living specimens seem everywhere 
scarce. 
foreign localities—Greenland (Moller), Norway (Lovén 
and others), northern and southern Spain, Portugal, and 
the Canary Islands (Md‘Andrew), Mediterranean (forbes, 
M Andrew, and others). 
Lima Loscombiu, G. B. Sowerby. 
Pecten fragilis, Montagu; Lima bullata, Turton ; Lima 
fragilis, Forbes. 
Habitat—In muddy sand and nullipore off Shellbole Bay, 
Cumbrae, very fine specimens. This is the only locality 
where I have found adult living individuals. None of them 
were enclosed in a nest. 
British distribution.—Generally distributed, but seem- 
ingly scarce everywhere. 
Foreign localities.—Norway (Lovén and others), Gibraltar 
(M‘Andrew), Mediterranean (Forbes and others). 
Lima hians, Gmelin. 
Ostrea hians, Gmelin; Lima tenera, Turton; Lima fragilis, 
Fleming; Lima aperta, Sowerby ; Lima inflata, Forbes. 
Habitat—In 8 to 30 fathoms, in nullipore and hard 
