78 



THE EOCENE DEPOSITS OF MARYLAXD 



SPECIES. 



LOCAL DISTRIBUTION. 



Aquia Formation. 



PISCATAWAY STAGE. 



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PASPOTANSA STAGE. 



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MoLLUSCA. Pelecypoda.— Coiitidtted. 

 Jlfei-etrte ovata var. ovata (Rogers) — . . 



Meretrix ovata var. pyga Conrad 



Meretrix nuMmpressa Conrad . 



Doslniopsis lenticularis (Rogers) 



Protocarclia lenix Conrad 



Diplodonta marlhoroensix C. & M 



Lucina aquiana Clark 



Lucina astartiformis Aldrich 



Lucina clarboni Clark 



Lucina uhJeri Clark 



Lioeina whitei Clark 



Lucina sp 



Venericarclia planicosta var. regia Con. 



Venericardia mar'ylandica C. & M 



Vcncricardia potapacoensis C. & M 



Crassatellites alaeformia (Conrad) 



Crassatellites aquiana (Clark) 



Crassatellites alta iConrad; 



Crassatellites sp 



Astarte marylandica Clark 



Coralliophaga bryani Clark 



Periploma ? sp 



Pholadomya marylandica Con 



Jlndiolus alabamensis Aid 



Mddiolus marylandicus C. «& M 



Lithophaga marylandica C. & M 



A)i.omia marylandica C. & M 



Pecten cfioctavensis Aldrich 



Pecten dalli Clark 



Pecten johnsoni Clark , 



Pecten sp 



Ostrea compi-essirostra Say 



Ostrea compressirostra var. alepidota Dall 



Ostrea sellaeformis Conrad 



Ostrea (Gryphaeostrea) vomer (Morton; 



Gryphaea vesicularis Lamarck 



Pteria limula (Conrad) 



Glycymeris idoneus ( Conrad i 



Trigonoarca decisa (Con.) var 



Cucullaea gigantea Conrad 



Leda parva (Rogers) 



Leda cultellif or mis (Rogers) 



Leda improcera (Conrad) 



Leda pnrilis CConrad) 



Leda juD-il i^ rar 



Leda jiiitniiiin-i'usis C. & M 



Leda cliftoncnsLs C. & M 



Leda tysoni C. & M 



Nucula ovula Lea, 



Nucula potomacensis C. & M 



MoLLTTSCOiDEA. Brachiopoda. 



Terehratula harlani Morton 



Platidia marylandica C. & M 



MoLt/USCOTDEA. Bryozoa. 



Discox/KM'srr rarianti Ulrich 



Fasciiiiirii stiliriiiiiii!<a Ulrich 



Reticuliijora diclidtonia G. & H 



Cavaria dumosa Ulrich 



