Description: English: Amoeba proteus, from Joseph Leidy's Fresh-water Rhizopods of North America. Date: 6 November 2011. Source: Fresh-water Rhizopods of North America, 1879. Author: Joseph Leidy.
Description: English: Amoeba proteus, visible are the contractile vacuole (circular) and the nucleus (somewhat dumbbell-shaped). Date: 6 December 2011, 15:03:01. Source: Own work. Author: Cymothoa exigua.
Description: English: Amoeba proteus in motion, with text identifying nucleus and uroid. Date: 6 November 2011. Source: Own work. Author: Deuterostome.