Two-toed Amphiuma vs. Three-toed Amphiuma
The two meet just north of Lake Pontchartrain (Three-toed records within 10 km of 7 of 11 Louisiana Two-toed records) and hybridize there. A: Two toes on each foot in the Two-toed Amphiuma; three toes on each foot in the Three-toed Amphiuma. B: Only a little paler than the back, no sharp line in the Two-toed Amphiuma; sharply paler than the dark back in the Three-toed Amphiuma. The Two-toed also has a dark throat patch. Both bite hard: handle with care.
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