Dwarf Waterdog vs. Two-toed Amphiuma
Both live in the slow blackwater streams of the Chowan drainage; the waterdog is small, the amphiuma huge. A: Bushy red outside gills behind the head in the Dwarf Waterdog; no outside gills: only a small slit on each side of the neck in the Two-toed Amphiuma. B: Four short, sturdy legs, with four toes each in the Dwarf Waterdog; four tiny legs, each with two toes in the Two-toed Amphiuma. Dwarf Waterdogs grow to about 7.5 in; Two-toed Amphiumas to over 3 ft.
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