ASTARTE, CIRCE, VENUS. 25 
(Whiteaves), Maine (Gould), Iceland (Verkriizen), Spitz- 
bergen (Torell), Norway (Lovén and Jeffreys). 'The variety 
striata was obtained in 79° 25’ N. lat. by the Naturalists to 
the recent Arctic Expedition. 
Astarte triangularis, Montagu. 
Mactra triangularis and M. minutissima, Montagu ; Goodallia 
triangularis and G. minutissima, T'wrton. 
Habitat—I have not met with this species alive in the 
Clyde district; but dead shells (single valves) occurred off 
Silvercraigs, Loch Fyne, in about 12 fathoms. Mr. Norman 
records it from Lamlash Bay; but the specimens were prob- 
ably dead, being obtained from the “shell sand of Lands- 
borough’s Bay,’ a prolific corner for dead and worn shells. 
British distribution—Gregarious on many parts of our 
coasts from Shetland to the English Channel; a local species, 
but occasionally abundant. 
Foreign localities.—Western Europe from Brittany south- 
ward,and extending as far as the Canary Islands (‘A ndrew); 
it inhabits the Mediterranean (Jeffreys) and Augean (Forbes). 
Circe, Schumacher. 
Circe minima, Montagu. 
Venus minima and Venus triangularis, Montagu; Venus 
pumila, Lamarck ; Cytherea minuta, Brown. 
Habitat.—In nullipore, from 6 to 20 fathoms. Common 
and fine on Tan Spit, Cumbrae; apparently scarce in 
Rothesay Bay, where I have taken a few specimens on 
Bogany and Toward Points; moderately common on Craig- 
more and Ascog shores, Bute, and at Silvereraigs, Loch Fyne. 
The variations of colouring in this pretty shell are almost 
infinite; in this respect it rivals Pecten tigrinus. 
British distribution—Throughout all our seas, in sand 
and nullipore, from 8 to 50 fathoms; very common. 
Foreign localities. —Finmark (Suis), Spain, Portugal, 
Madeira, and Canary Islands (M‘Andvew), Mediterranean 
(Vures, and others). 
FAMILY VENERIDA, Leach. 
Venus, Linné. 
* Venus exoleta, Linné. 
Pectunculus capillaceus, Da Costu ; Artemis exoleta, Forbes 
and Hanley. 
Habitat.—In sandy bays, just below ordinary low water, 
