Order Echinamoebida (Cavalier-Smith, 2004) Smirnov et al, 2011
Diagnosis: Flattened limax amoebae with or without spine-like subpseudopodia; if spiny subpseudopodia absent, length/breadth ratio >6.
Two families:
Family Echinamoebidae Page, 1975 em. Cavalier-Smith and Smirnov 2011
Echinamoeba
Micriamoeba
Family Vermamoebidae Cavalier-Smith and Smirnov 2011
Vermamoeba
Tests with broad protuberances Tests with one or more broad or blunt protuberances which are conical, bud, wrath or nipple-shaped. They may be present as
Acuminate tests Tests with one or more spines or bud-like or conical protuberances or just a pointed fundus D. acuminata D. congolensis D. ventricosa D.
Difflugia subaequalis, from Penard, 1910 Difflugia subaequalis Penard, 1910 Diagnosis: Test almost spherical, slightly elongated, with a wide pseudostome, almost as wide as the test
Difflugia ampullula, after Playfair, 1918 Difflugia ampullula Playfair, 1918 Diagnosis: Test broadly ovate, with hemispherical fundus, and sides gradually converging in almost straight lines to
Difflugia stepaneki, from Hager and Haagerova, 1970 Difflugia stepaneki Hager and Haagerova, 1970 Diagnosis: Test broad elliptical, circular in cross-section, with a short neck that