PLATE V. 



Shewing the HINGES of Bivalves, and other Peculiarities. 



Fig. 



1 Internal view of the Donax Scortum, shewing the 



hinge. 



2 Internal view of the Solen Siliqua, shewing the hinge. 



3 Internal view of the Solen Vespertinus, shewing the 



hinge. 



4 Internal view of the Ostrea Isognomon, shewing the 



hinge. 



5 Internal view of the Pholas Dactylus, shewing the 



teeth. 



6 Internal view of the Pinna Pectinata. 



7 Internal view of the Mactra Stultorum, shewing the 



hinge. 



8 Internal view of the Mytilus Hirundo. 



9 Internal view of the Mya Aurita, shewing the hinge. 



10 Trochus Conchyliophorus, shewing its singular pro- 



pensity of collecting and affixing shells to itself. 



1 1 Variety of the above, sometimes called the Mineralo- 



gist, because it collects stones. 



