Genus: Clear pseudopods, formed from clear anterior, more or less broad margin
(Illustrated Guide, 1985).
Group II: Subpseudopodia, broadly based mammilliform or nearly hemisperical pyramids. (a: Pseudopods triangular to mammilliform; cell body more or less tubular; locomotive more than 100 μm)
Species: 100-200 μm; L/B to 3; 2 or more pairs of mamilliform pseudopodia from anterior end; short pseudopodia protruding downward from anterior end; 3 or 4 longer, more slender pseudopodida from upper surface of anterior 1/3 of amoeba; no radiate floating form; nucleus 11-12 μm (Page, 1976).
Mayorella leidyi stock ML-1, azure-C stained, by Y. Tsukii
Mayorella leidyi, x 200, x 400, by Y. Tsukii
100 μm 200 μm 300 μm; x 200 : 50 μm 100 μm 150 μm; x 400
Mayorella leidyi ML-1, x 100, by Y. Tsukii