Mr. R. MacAndrew on the Mollusca of Vigo Bay. 511 



*Curdium lavigatum : nuUipore and gravel. 



* parvum ? 



* scabrum ? 



Area 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. JacohfBus. N.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. 



*Ostra:a 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 Icevis } : one specimen and a few minute. 



* Patella vulgata : common. 



pellucida : one dead specimen. 



*Lottia virginea : frequent. 



* Emarginula rosea : one living, many dead. 



*Fissurella grceca : rare : not large. 



*Calyptr<Ea sinensis: abundant. 



*Bull(Ea aperta : abundant : in mud, shallow water. 



*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. 



