28 THE MOLLUSCA OF THE FIRTH OF CLYDE. 
Indies, Africa, the Indian Ocean, and Australia, has been 
attributed to this species, whether rightly or not I cannot 
say. The following localities, however, are trustworthy, 
viz., the Atlantic coast of France, Spain, Portugal, Madeira, 
and Canary Islands (M‘Andrew), Algiers (Weinkauff), Adri- 
atic (Olivi), Sicilian and Corsican coasts (Payraudeau, and 
others), the eastern Mediterranean and Aigean (Vuves, and 
others). 
* Venus ovata, Pennant. 
Cytherea ovata, Fleming ; Venus pectinata, Lamarck. 
Habitat—In gravel and nullipore, from 6 fathoms down- 
ward. Very common at Bogany Point, and off Ascog and 
Craigmore in Bute; also on some parts of Tan Spit, Cum- 
brae ; and generally throughout the district. 
British distribution.—On all our coasts; a very common 
shell. 
Foreign localities—From Norway to the Mediterranean 
and Sea of Marmora. 
* Venus gallina, Lanne. 
Pectunculus striatulus, Da Costa ; Venus striatula, Donovan ; 
Venus casina, Pulteney. 
Habitat—More or less common everywhere, from low 
water to all depths, on sandy, gravelly, or stony ground, but 
not in mud. Specially common in 2 or 3 fathoms water in 
sandy bays such as Kames and Fintry in Cumbrae. The 
varieties laminosa and gibba are also common, together with 
a number of intermediate forms. 
British distribution.— Every where on sandy and nullipore 
bottoms, but especially in sand a little below lowest water 
of spring tides. 
Foreign localities —Iceland (Steenstrup), Norway (Loven, 
and others), Spain, Portugal, Mediterranean, and Mogador 
(M‘ Andrew). 
Tapes, Miihlfeldt. 
* Tapes virgineus, Linne. 
Venus virginea, Linné; Venus rhomboides, Pennant; Cuneus 
fasciatus, Da Costa ; Pullastra virginea, Brown. 
Habitat—Rather common in the Clyde district, in sand 
and nullipore, from 8 to 380 fathoms water. Large and fine 
specimens may be obtained off Battery Point, Cumbrae, and 
