One-toed Amphiuma vs. Greater Siren

In the Florida panhandle the Greater Siren lives in the same swamps as the One-toed Amphiuma. A: None outside, only a tiny gill slit in the One-toed Amphiuma; bushy outside gills behind the head in the Greater Siren. B: Four tiny legs (front and hind) in the One-toed Amphiuma; only two small front legs, no hind legs in the Greater Siren. The Greater Siren grows to over 3 ft; the One-toed Amphiuma stays under 13 in.

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

More comparisons

• One-toed Amphiuma vs. Two-toed Amphiuma
• One-toed Amphiuma vs. Three-toed Amphiuma
• One-toed Amphiuma vs. Western Lesser Siren
• One-toed Amphiuma vs. Lesser Siren
• One-toed Amphiuma vs. Gulf Coast Waterdog
• Escambia Waterdog vs. One-toed Amphiuma
• Seepage Siren vs. One-toed Amphiuma
• Reticulated Siren vs. One-toed Amphiuma
• Apalachicola Waterdog vs. One-toed Amphiuma
• Dwarf Waterdog vs. Greater Siren
• Greater Siren vs. Two-toed Amphiuma
• Lesser Siren vs. Greater Siren
• Reticulated Siren vs. Greater Siren
• Apalachicola Waterdog vs. Greater Siren
• Northern Dwarf Siren vs. Greater Siren
• Southern Dwarf Siren vs. Greater Siren
• Rubber Eel vs. Greater Siren

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