Opinions from W. B. Clark 1895
- 'Anomia mcgeei belongs to Anomia'
- 'Astarte marylandica belongs to Astarte'
- 'Byssomya petricoloides belongs to Byssomya' according to Lea 1833
- 'Byssomya petricoloides is recombined as Solemya petricoloides'
- 'Cadulus bellulus belongs to Cadulus'
- 'Calyptraphorus jacksoni belongs to Calyptraphorus'
- 'Carcharias polygyrus [misspelled as Carcharodon polygurus] belongs to Carcharodon'
- 'Coralliophaga bryani belongs to Coralliophaga'
- 'Corbula aldrichi belongs to Corbula'
- 'Corbula nasuta belongs to Corbula'
- 'Corbula oniscus belongs to Corbula'
- 'Crassatella alaeformis belongs to Crassatella'
- 'Crassatella aquiana belongs to Crassatella'
- 'Crassatella capricranium is a subjective synonym of Crassatella alaeformis'
- 'Crassatella declivis is a subjective synonym of Crassatella alaeformis'
- 'Cucullaea gigantea belongs to Cucullaea'
- 'Cylichna venusta belongs to Cylichna'
- 'Cytherea eversa belongs to Cytherea' according to Conrad 1848
- 'Cytherea eversa belongs to Cytherea'
- 'Cytherea lenticularis belongs to Cytherea' according to Rogers 1838
- 'Cytherea lenticularis is recombined as Dosiniopsis lenticularis'
- 'Cytherea ovata belongs to Cytherea'
- 'Cytherea subimpressa belongs to Cytherea'
- 'Diplodonta hopkinsiensis belongs to Diplodonta'
- 'Dosiniopsis meekii belongs to Dosiniopsis' according to Conrad 1866
- 'Dosiniopsis meekii is a subjective synonym of Dosiniopsis lenticularis'
- 'Fusus (Levifusus) trabeatus belongs to Fusus (Levifusus)' according to Conrad 1858
- 'Fusus (Levifusus) trabeatus belongs to Fusus (Levifusus)'
- 'Fusus (Strepsidura) perlatus belongs to Fusus (Strepsidura)' according to Conrad 1858
- 'Fusus (Strepsidura) perlatus belongs to Fusus (Strepsidura)'
- 'Fusus argutus belongs to Fusus'
- 'Galeocerdo contortus belongs to Galeocerdo'
- 'Ischyrhiza radiata belongs to Ischyrhiza'
- 'Lamna elegans is recombined as Odontaspis elegans'
- 'Levifusus was reranked as Fusus (Levifusus) and belongs to Fusus'
- 'Lucina aquiana belongs to Lucina'
- 'Lucina dartoni belongs to Lucina'
- 'Lucina uhleri belongs to Lucina'
- 'Lucina whitei belongs to Lucina'
- 'Lunatia marylandica belongs to Lunatia'
- 'Mangilia (Pleurotomella) bellistriata belongs to Mangilia (Pleurotomella)'
- 'Mitra marylandica belongs to Mitra'
- 'Modiola potomacensis belongs to Modiola'
- 'Monodonta glandula belongs to Monodonta' according to Conrad 1866
- 'Monodonta glandula is recombined as Gibbula glandula'
- 'Myliobatis copeanus belongs to Myliobatis'
- 'Natica cliftonensis belongs to Natica'
- 'Nucula magnifica belongs to Nucula'
- 'Nucula parva is recombined as Leda parva'
- 'Ostrea compressirostra belongs to Ostrea'
- 'Ostrea sellaeformis belongs to Ostrea'
- 'Otodus obliquus is recombined as Lamna obliqua'
- 'Oxyrhina hastalis belongs to Oxyrhina'
- 'Panopaea elongata belongs to Panopaea' according to Conrad 1835
- 'Panopaea elongata belongs to Panopaea'
- 'Patella trochiformis is recombined as Calyptraea trochiformis'
- 'Pecten johnsoni belongs to Pecten'
- 'Pecten rogersii [misspelled as Pecten rogersi] belongs to Pecten'
- 'Pectunculus idoneus belongs to Pectunculus' according to Conrad 1833
- 'Pectunculus idoneus belongs to Pectunculus'
- 'Pholadomya marylandica belongs to Pholadomya' according to Conrad 1842
- 'Pholadomya marylandica belongs to Pholadomya'
- 'Pleurotoma harrisi belongs to Pleurotoma'
- 'Pleurotomella was reranked as Mangilia (Pleurotomella) and belongs to Mangilia'
- 'Protocardia virginiana belongs to Protocardia' according to Conrad 1864
- 'Protocardia virginiana belongs to Protocardia'
- 'Ringicula dalli belongs to Ringicula'
- 'Scala virginiana belongs to Scala'
- 'Strepsidura was reranked as Fusus (Strepsidura) and belongs to Fusus'
- 'Tellina virginiana belongs to Tellina'
- 'Tellina williamsi belongs to Tellina'
- 'Teredo virginiana belongs to Teredo'
- 'Thecachampsa marylandica belongs to Thecachampsa'
- 'Tornatellaea bella belongs to Tornatellaea'
- 'Trionyx virginianus is corrected as Trionyx virginiana and belongs to Trionyx'
- 'Turritella humerosa belongs to Turritella'
- 'Turritella mortoni belongs to Turritella'
- 'Venericardia ascia is a subjective synonym of Venericardia planicosta'
- 'Venericardia planicosta belongs to Venericardia'
- 'Venericardia regia is a subjective synonym of Venericardia planicosta'
- 'Voluta petrosa is recombined as Volutilithes petrosa'