Two-toed Amphiuma vs. Western Lesser Siren

Western Lesser Sirens live in the same ditches and swamps north of Lake Pontchartrain (a record within 10 km of 8 of 11 Two-toed records); both are long and eel-like. A: Four tiny legs, front and hind in the Two-toed Amphiuma; only two small front legs; no hind legs in the Western Lesser Siren. B: No outside gills: only a small slit on each side of the head in the Two-toed Amphiuma; bushy outside gills behind the head in the Western Lesser Siren.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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