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TABULA SYNOPTICA TESTAGEORUM. II. & III. Bivalvia and Multivalvia, 



Division II. BIVALVES have three Orders or Subdivifions. 

 I. With unequal Valves, and fliut clofe. II. With equal Valves, and fliut clofe ; and, III. With Valves that never (hut clofc. 



ORDER I. With unequal Valves, and fliut clofe. 



Fam. 



VI. 

 VII. 



>< 



L VIII. 

 jx. 



X. 



XI. 

 Xil. 



xm. 



ORDER II. with equal Valves, and fliut clofe. 

 SeS. I. Leptopolyglnglymi, or Multarticulate. 

 Genus. 



Peflinoides. - - - - - 

 Pectuaculi Leptopolyglnglymi. 

 Area. ----- 



6 Pefllnoides. 



7 Multarticulate Cockles. 



8 Ark, or Boat. 



PeiSjtunculus. 



Sect. II. Articulate, or fet with few Teeth. 



Tellina. 

 Placenta. 



Cockles. 

 g Cockles. 



10 Cardium, or Heart Cockles. 



1 1 Truncatus, or flat-fided Cocklei.' 

 Tellens, or Sand Mufcles. 



12 Tellens. 



13 Cuneus. 

 i^ Placenta. 



Sect. III. Inarticulate, or without any Teeth» 

 Margaritifera. ----- I 1 5 Pearl Cyder. 

 Mufculus. -■ 16 Mufcles. 



ORDER III. with Valves that never ihut clofe. Conchas Hiantes. 



Chama, Gapers. 



1 7 Tridacna, Bafon Conques, or Clampi, 

 1 5 Chama, Purrs. 



19 Solen, Sheath, or Razor Shell. 



20 Pinna, Sea- Wing, or Ham. 



Division III. MULTIVALVES. 



F^M. Genvs. 



XIV. Pholas. - - - - 21 Piddocks. 



XV. Anatifers. - - 22 Barnacles. 



XVI. Balani. - t - - [23 Acorns. 



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