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13 tropisternus species
Tropisternus lateralis
Tropisternus columbianus
Tropisternus mixtus
Tropisternus natator
Tropisternus glaber
Tropisternus quadristriatus
Tropisternus affinis
Tropisternus californicus
Tropisternus blatchleyi
Tropisternus apicipalpis
Tropisternus sublaevis
Tropisternus salsamentus
Tropisternus collaris
At least 12 characters with a letter and a number.
