. Maryland geological survey . MOLLUSCA PELECYPODA. PLATE LXIII. PAGE Figs. 1-6. Ostrea vieginica Gmelin 204 1. Interior of upper valve of young individual. Wailes Bluff. X 5/7 2. Exterior of same. 3. Interior of upper valve of older individual. Same locality. X 5/7 4. Interior of lower valve of same. 5. Interior of lower valve of individual shown in Pig. 1. X 5/7 6. Exterior of same. MARYLAND GEOLOGICAL SURVEY. PLIOCENE AND PLEISTOCENE, PLATE MOLLUSCA PELECYPODA. PLATE LXIV. PAGE Figs. 1-6. Arca (Noetia) ponderosa Say 205 1. Interior of left valve. Wailes Bluff. 2. Exterior of right v


. Maryland geological survey . MOLLUSCA PELECYPODA. PLATE LXIII. PAGE Figs. 1-6. Ostrea vieginica Gmelin 204 1. Interior of upper valve of young individual. Wailes Bluff. X 5/7 2. Exterior of same. 3. Interior of upper valve of older individual. Same locality. X 5/7 4. Interior of lower valve of same. 5. Interior of lower valve of individual shown in Pig. 1. X 5/7 6. Exterior of same. MARYLAND GEOLOGICAL SURVEY. PLIOCENE AND PLEISTOCENE, PLATE MOLLUSCA PELECYPODA. PLATE LXIV. PAGE Figs. 1-6. Arca (Noetia) ponderosa Say 205 1. Interior of left valve. Wailes Bluff. 2. Exterior of right valve. Same locality. 3. Interior of same. 4. Exterior of left valve. 5. Interior of left valve of larger individual, same locality. 6. Exterior of same. Figs. 7-10. Arca (Scapharca) transversa Say 206 7. Interior of left valve. Wailes Bluff. X 2y2 8. Exterior of right valve. Same locality. X2y2 9. Interior of same. 10. Exterior of left valve. MARYLAND GEOLOGICAL SURVEY. PLIOCENE AND PLEISTOCENE, PLATE LXIV.


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