SCROBICULARIA. 35 
British distribution —Generally distributed, but usually 
scarce. 
Foreign localities—Widely spread from Iceland (Verkrii- 
zen and others), throughout northern and western Europe; 
also in the Mediterranean and Aivean Seas (Forbes). 
* Scrobicularia alba, Wood. 
Mactra alba, Wood ; Mactra Boysii, Montagu ; Amphidesma 
album, Fleming ; Syndosmya alba, Forbes and Hanley. 
Habitat—Gregarious in mud and ooze, in from 3 to 25 
fathoms; rather a common species. I have taken it large 
and fine at Lochgoilhead, in 3 or 4 fathoms, between Douglas 
and the Loch-head piers; and at Bogany Point, Bute, in 15 
to 20 fathoms; also outside Tan Spit, Cumbrae, but not so 
common there. It is plentiful in Loch Gilp, in 5 to 7 
fathoms, at the mouth of the loch. My finest specimens are 
an inch broad by 74ths long, and are from Lochgoilhead. 
British distribution—Throughout our seas everywhere ; 
a common species. 
Foreign localities —Norway (Lovén), Holland (Herklots), 
Spain, Portugal, and Mogador (M‘Andrew), Mediterranean 
(Philippi and others), Aigean (Forbes), Sea of Marmora 
(Spratt). 
Scrobicularia piperata, Gmelin. 
Mactra piperata, Gmelin; Trigonella plana, Da Costa ; 
Mactra compressa, Pulteney; Trigonella Listeriana, Leach ; 
Venus borealis, Pennant (not Linné); Tellina plana, 
Donovan. 
Habitat.—I have seen one specimen in Mr. Robertson’s 
cabinet, taken on Fairlie Sands in a fathom or two of water; 
but have not had the good fortune to meet with this species 
myself. Dr. Landsborough records it from Arran, near 
Corriegills; where, however, Mr. Norman sought for it in 
vain. 
british distribution —Local throughout the English and 
Trish coasts in most suitable spots. In Scotland it is recorded 
by Macgillivray from Aberdeen, and from St. Andrews by 
Dr. M‘Intosh; whilst Laskey and Forbes found it in the 
Firth of Forth. 
Foreign localities—From Norway (Lovén) and Holland 
(Herklots), throughout western Europe, and the Mediter- 
ranean as far as the Adriatic, 
