Mr. R. MacAndrew on the Mollusca of Vigo Bay. 509 
strata; also the Goodallia, which probably does not extend much 
further south. We sailed from Vigo on the 2nd instant, but 
as for some time previously there had prevailed strong winds on 
shore, were not able to do anything with the dredge north of Cape 
Vincent. We made an attempt off the Berlings, eight or ten 
miles distant, but with 200 fathoms line could get no bottom. 
There was a very heavy swell. Off Cape St. Mary’s, outside this 
port, I had a few hauls in from fifteen to thirty fathoms water, 
and obtained eighty or ninety species which form the materials of 
a dredging paper. The Venus from that locality appears to be in- 
termediate between the gallina of the Mediterranean and striata 
of our seas, so that they may at last prove to be only varieties of 
the same species. We found thousands of live specimens of 
Ditrupa subulata, which consequently inhabits a shallower depth 
here than m the British seas. Of Capsa castanea we procured 
many valves, as on the coast of Cornwall, but no live specimen, 
which is smgular. I am disappointed at not being able to dredge 
in this harbour, but it is composed of narrow muddy channels 
through an extensive marsh. The littoral species of mollusca are 
here quite Mediterranean. Conus Mediterraneus, Cerithium vul- 
_ gare, Murex truncatus and M. Brandaris are about the most com- 
mon. I have not yet seen any Purpure. On the Zostera at low 
water are found four or five species of Trochus distinct from those 
of Vigo; also Rissoa labiosa and Phasianella Vieuxiit. Cardium 
edule is in great abundance and fine; likewise Ostrea edulis near 
the North bar. We saw no signs of Laminarie. 
Mollusca obtained in Vigo Bay, March 1849. 
N.B. Those marked * were procured alive. 
* Balanus tintinnabulum. * Balanus 
* Clitia verruca. 
* Acasta Montagui. 
Anatifa vulgaris. Anatifa striata. 
* Pollicipes cornucopia: procured from rocks: sold abundantly in the 
market, and much esteemed for food. 
* Dentalium entalis : rare. 
* dentalis (angulated) : abundant. 
trachea 
-—— minute species 
*Spirorbis: common British species ; on fucus. 
*Solen siliqua: from sand at low water, and sold in the market. 
ensis: island of St. Simon. 
Lyonsia striata: dredged two valves. 
Lutraria oblonga: valves. 
$ elliptica : sold in the market. 
rugosa: numerous valves on the shore: only two specimens 
dredged with united valves: appear to bury deep in the sand: 
> COmmon. 
in nullipore. 
