134 teansactions liverpool biological society. 

 Explanation of Plates. 



Plate I. 



Fig. 1. Oyster pare at Arcachon showing enclosures, 



pignons, and row of collectors. 

 Pig. 2. A collector ("Gabaret") showing arrangement 



of tiles. 

 Fig. 3. Shows a tile on which oyster spat has just been 



deposited. 

 Fig. 4. Part of an oyster pare showing rows of 



" ambulances." 

 Fig. 5. An " ambulance " opened. 

 Fig. 6. Corner of a pare showing sluice, construction of 



banks, and a ponton in the distance. 



Plate II. 



Fig. 1. Part of a tile showing young oysters ready to be 



removed. 

 Fig. 2. Primitive oyster pares on shore at Pointe le 



Chapus. 

 Fig. 3. Basins of degorgement at Pointe le Chapus. 

 Fig. 4. Oyster claires near Marennes. 

 Fig. 5. Navicula fusiformis, var. ostrearia, and allied 



forms, on which the oyster feeds. 

 Fig. 6. Shellfish enclosures at Pointe le Chapus, with 



girls collecting "pelerins." 



Plate III. 



Fig. 1. Sketch near Charron, Bay of Aiguillon, showing 



bouchots, aeons, &c. 

 Fig. 2. The shrimp traps (" casiers ") at Le Croisic. 

 Fig. 3. Oyster pares and marais salants between Le 



Croisic and Le Bourg-de-Batz. 



