Abra marylandica Glenn, 1904 † (original description)
Arca (Scapharca) elnia Glenn, 1904 † (original description)
Astarte calvertensis Glenn, 1904 † (original description)
Astarte castrana Glenn, 1904 † (original description)
Astarte thisphila Glenn, 1904 † (original description)
Atrina piscatoria Glenn, 1904 † (original description)
Bornia depressa Glenn, 1904 † (original description)
Bornia marylandica Glenn, 1904 † (original description)
Callocardia (Agriopoma) prunensis Glenn, 1904 † (original description)
Cardium (Cerastoderma) calvertensium Glenn, 1904 † (original description)
Cardium (Cerastoderma) patuxentium Glenn, 1904 † (original description)
Chione parkeria Glenn, 1904 † (original description)
Crenella gubernatoria Glenn, 1904 † (original description)
Crenella virida Glenn, 1904 † (original description)
Erycina calvertensis Glenn, 1904 † (original description)
Erycina marylandica Glenn, 1900 † (redescription)
Erycina pruna Glenn, 1904 † (original description)
Erycina rickardia Glenn, 1904 † (original description)
Erycina speciosa Glenn, 1904 † (original description)
Isocardia ignolea Glenn, 1904 † (original description)
Isocardia mazlea Glenn, 1904 † (original description)
Kellia rotundula Glenn, 1904 † (original description)
Lithophaga ionensis Glenn, 1904 † (original description)
Macoma marylandica Glenn, 1904 † (original description)
Mesodesma mariana Glenn, 1904 † (original description)
Modiolaria curta Glenn, 1904 † (original description)
Modiolus dalli Glenn, 1904 † (original description)
Modiolus ionensis Glenn, 1904 † (original description)
Psammobia gubernatoria Glenn, 1904 † (original description)
Spisula (Hemimactra) chesapeakensis Glenn, 1904 † (original description)
Sportella patuxentia Glenn, 1904 † (original description)
Sportella recessa Glenn, 1904 † (original description)
Thecodonta (Dicranodesma) calvertensis Glenn, 1900 † (redescription)
Venericardia castrana Glenn, 1904 † accepted as Cyclocardia castrana (Glenn, 1904) † (original description)

Maryland for Abra marylandica Glenn, 1904 † 
Maryland for Arca (Scapharca) elnia Glenn, 1904 † 
Maryland for Astarte calvertensis Glenn, 1904 † 
Maryland for Astarte castrana Glenn, 1904 † 
Maryland for Astarte thisphila Glenn, 1904 † 
Maryland for Atrina piscatoria Glenn, 1904 † 
Maryland for Bornia depressa Glenn, 1904 † 
Maryland for Bornia marylandica Glenn, 1904 † 
Maryland for Callocardia (Agriopoma) prunensis Glenn, 1904 † 
Maryland for Cardium (Cerastoderma) calvertensium Glenn, 1904 † 
Maryland for Cardium (Cerastoderma) patuxentium Glenn, 1904 † 
Maryland for Chione parkeria Glenn, 1904 † 
Maryland for Crenella gubernatoria Glenn, 1904 † 
Maryland for Crenella virida Glenn, 1904 † 
Maryland for Erycina calvertensis Glenn, 1904 † 
Maryland for Erycina marylandica Glenn, 1900 † 
Maryland for Erycina pruna Glenn, 1904 † 
Maryland for Erycina rickardia Glenn, 1904 † 
Maryland for Erycina speciosa Glenn, 1904 † 
Maryland for Isocardia ignolea Glenn, 1904 † 
Maryland for Isocardia mazlea Glenn, 1904 † 
Maryland for Kellia rotundula Glenn, 1904 † 
Maryland for Lithophaga ionensis Glenn, 1904 † 
Maryland for Macoma marylandica Glenn, 1904 † 
Maryland for Mesodesma mariana Glenn, 1904 † 
Maryland for Modiolaria curta Glenn, 1904 † 
Maryland for Modiolus dalli Glenn, 1904 † 
Maryland for Modiolus ionensis Glenn, 1904 † 
Maryland for Psammobia gubernatoria Glenn, 1904 † 
Maryland for Spisula (Hemimactra) chesapeakensis Glenn, 1904 † 
Maryland for Sportella patuxentia Glenn, 1904 † 
Maryland for Sportella recessa Glenn, 1904 † 
Maryland for Venericardia castrana Glenn, 1904 †