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Carl Koch: North American Racer (Coluber constrictor)/Blue Racer (Coluber constrictor foxii)/"Yellow-bellied racer", Sauk County, Wisconsin (found by Stu Willicombe)
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Carl Koch: P5220075
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Carl Koch: Juvenile North American Racer (Coluber constrictor)/Blue Racer (Coluber constrictor foxii)/"Yellow-bellied racer", Sauk County, Wisconsin (found by Phil & Avery Fritsch))
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Carl Koch: P5280108
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Carl Koch: P5280118
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Carl Koch: P5280137
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Carl Koch: P5280189
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Carl Koch: P5280226
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Carl Koch: P5300236
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Carl Koch: P5300245
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Carl Koch: P5300265
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Carl Koch: P5300269
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Carl Koch: P6140010
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Carl Koch: P6140012
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Carl Koch: P6140016
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Carl Koch: P6140021
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Carl Koch: P6180031
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Carl Koch: P6240035
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Carl Koch: P6250041
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Carl Koch: P6250044
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Carl Koch: P6250050
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Carl Koch: P6250087
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Carl Koch: P6250141
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Carl Koch: P6250161
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Carl Koch: P6250170
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Carl Koch: P6250173
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Carl Koch: P6250175
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Carl Koch: P6250192
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Carl Koch: P6250195
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Carl Koch: P6260196