Mr. R. MacAndrew on the Mollusca of Vigo Bay. 511 
*Cardium levigatum : nullipore and gravel. 
*_____ parvum ? 
* scabrum ? 
Arca tetragona : valves: nullipore and gravel. 
lactea : valves. 
* Pectunculus pilosus : nullipore and gravel. 
* Nucula nitida : mud. 
Modiola tulipa : valves. 
* marmorata : in an ascidia, &c. 
* Mytilus Gallo-provincialis var. dilatata ? : common on rocks : byssus 
very strong. 
* edulis: on Pollicipes brought from entrance of the bay. 
Avicula: two specimens and some fragments found on the shore. 
*Pecten maximus: sand: could not identify any with certainty as 
P. Jacobeus. WN.B. Suspect the latter to be only a variety. 
. opercularis : sand, &c.: small size. 
~—— varius: valves: sand, &c. 
obsoletus : valves: sand, &c. 
similis : valves : sand, &c. 
distortus : rocky ground. 
*Ostrea edulis : abundant in shallow water near the head of the bay 
and of excellent quality. 
*___ edulis var. ? or parasitica? : small size, in some parts covering 
the rocks. 
* Anomia. ephippium: abundant. : 
*Crania persona: on dead shells near the entrance of bay. 
*Chiton rufus: very abundant: creeping on the sand along shore as 
well as attached to hard substances: some were always found on 
the chain cable. 
fascicularis ; on dead shells. 
marginatus : under stones low water. 
cinereus : on shells, &c. 
albus? 
ruber? or levis? : one specimen and a few minute. 
* Patella vulgata : common. 
pellucida: one dead specimen. 
*Lottia virginea: frequent. 
* Emarginula rosea : one living, many dead. 
*Fissurella greca: rare: not large. 
*Calyptrea sinensis : abundant. 
* Bullea aperta: abundant : in mud, shallow water. 
- 
x &© & & 
*Bulla hydatis: ditto ditto. 
* akera : ditto ditto. 
*____ cylindrica : mud : frequent. 
truncata: ditto ditto. 
umbilicata : mud : rare. 
*_____ lignaria : one specimen. 
* Aplysia: rocks, low water. 
* Rissoa ulva: mud. 
* vincta: under stones, St. Simon’s Island. 
