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Primary view of Utterbackia imbecillis, Specimen #1340
Britton, Joseph
June 1, 1977
Primary view of Utterbackia imbecillis, Specimen #1341
Britton, Joseph
June 1, 1977
Primary view of Utterbackia imbecillis, Specimen #1342
Britton, Joseph
June 1, 1977
Primary view of Utterbackia imbecillis, Specimen #1343
Britton, Joseph
June 1, 1977
Primary view of Utterbackia imbecillis, Specimen #1344
Britton, Joseph
June 1, 1977
Primary view of Utterbackia imbecillis, Specimen #1345
Britton, Joseph
June 1, 1977
Primary view of Obliquaria reflexa, Specimen #545
Britton, Joseph
May 1, 1977
Primary view of Obliquaria reflexa, Specimen #546
Britton, Joseph
May 1, 1977
Primary view of Toxolasma parvum, Specimen #1120
Britton, Joseph
May 1, 1977
Primary view of Leptodea fragilis, Specimen #524
Britton, Joseph
November 1, 1976
Primary view of Leptodea fragilis, Specimen #525
Britton, Joseph
November 1, 1976
Primary view of Glebula rotundata, Specimen #259
Britton, Joseph
November 1, 1972
Primary view of Utterbackia imbecillis, Specimen #1389
Britton, Joseph
November 1, 1976
Primary view of Cyrtonaias tampicoensis, Specimen #202
Britton, Joseph & Britton, David
August 1, 1979
Primary view of Cyrtonaias tampicoensis, Specimen #203
Britton, Joseph & Britton, David
August 1, 1979
Primary view of Cyrtonaias tampicoensis, Specimen #204
Britton, Joseph & Britton, David
August 1, 1979
Primary view of Utterbackia imbecillis, Specimen #1283
Britton, Joseph; Britton, Michael; Britton, David & La Grove, M.
August 1, 1979
Primary view of Lampsilis teres, Specimen #284
Britton, Joseph; Britton, David; Britton, Michael & La Grove, M.
August 1, 1979
Primary view of Quadrula mortoni, Specimen #1105
Britton, Joseph
November 1, 1976
Primary view of Quadrula mortoni, Specimen #1106
Britton, Joseph
November 1, 1976
Primary view of Quadrula mortoni, Specimen #1107
Britton, Joseph
November 1, 1976
Primary view of Quadrula mortoni, Specimen #1108
Britton, Joseph
November 1, 1976
Primary view of Quadrula mortoni, Specimen #1109
Britton, Joseph
November 1, 1976
Primary view of Leptodea fragilis, Specimen #580
Britton, Joseph
August 1, 1974
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