PLATE XXX. 



Fig. I. Spisiila duplincnsis Dall, interior of riglit valve ; Miocene, Duplin County, 



North Carolina; Ion. 58 mm. ; p. 898. 

 Fig. 2. Modiolus grammatus Dall ; Ballast Point silex beds; Ion. 20 mm. ; p. 794. 

 Fig. 3. Lima smirna Dall; Oligocene ; Ballast Point silex beds; alt. 31 mm. ; p. 766. 

 Fig. 4. Osirea falco Dall, inner face of upper valve; Zeuglodon bed; alt. 55 mm.; 



p. 682. 

 Fig. 5. Ostrea podagrina Dall ; Oligocene of Suwanee River, Florida; interior of upper 

 valve ; alt. 1 10 mm. ; p. 6S2. 

 The same, external view ; p. 682. 



Tellina dodona Dall ; Oligocene, Oak Grove marl ; Ion. 16 mm. 

 Pododcsimis scopehis Dall ; Rock Bluff marl ; inner face of attached valve ; lat. 



57 mm. ; p. 779. 

 Mytihis pandionis XiaW \ umbonal view ; p. 787. 

 Mytilm pandionis Dall ; White Beach, Osprey, Florida ; interna] cast of right 



valve ; Ion. 122 mm. ; p. 787. 

 Ostrea falco Dall ; alt. 55 mm. ; external view ; p. 682. 



92s 



