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Primary view of Utterbackia imbecillis, Specimen #1373
Britton, Joseph & Hagan, J.
June 9, 1977
Primary view of Leptodea fragilis, Specimen #516
Britton, Joseph
June 14, 1979
Primary view of Leptodea fragilis, Specimen #517
Britton, Joseph
June 14, 1979
Primary view of Leptodea fragilis, Specimen #518
Britton, Joseph; Brush, Sam & La Grove, M.
June 14, 1979
Primary view of Utterbackia imbecillis, Specimen #1286
Britton, Joseph; Brush, Sam & La Grove, M.
June 15, 1979
Primary view of Toxolasma texasense, Specimen #1198
unknown creator
June 16, 1979
Primary view of Toxolasma texasense, Specimen #1199
unknown creator
unknown creation date
Primary view of Toxolasma texasense, Specimen #1200
unknown creator
unknown creation date
Primary view of Utterbackia imbecillis, Specimen #1374
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Utterbackia imbecillis, Specimen #1375
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Utterbackia imbecillis, Specimen #1376
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Utterbackia imbecillis, Specimen #1377
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Toxolasma texasense, Specimen #1201
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1264
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1265
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1266
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1267
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1268
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1269
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1270
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1271
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1272
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1273
Britton, Joseph & Britton, Michael
August 10, 1979
Primary view of Uniomerus tetralasmus, Specimen #1274
Britton, Joseph & Britton, Michael
August 10, 1979
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