Genus Keratella The genus Keratella belongs t the family Brachionidae. Keratella has no foot opening in the lorica, which is In contrast to the genus Brachionus Keratella cochlearis Keratella cochlearis Keratella cochlearis Keratella cochlearis var. hispida Keratella cochlearis var. hispida Keratella cochlearis var. hispida K. cochlearis var. irregularis K. cochlearis var. irregularis K. cochlearis var. irregularis Keratella quadrata Keratella quadrata Keratella quadrata Keratella quadrata Keratella quadrata Keratella quadrata K. quadrata var. frenzeli K. quadrata var. frenzeli K. quadrata var. frenzeli Keratella serrulata curvicornis Keratella serrulata curvicornis Keratella serrulata curvicornis Keratella serrulata serrulata Keratella serrulata serrulata Keratella serrulata serrulata Keratella paludosa Keratella paludosa Keratella paludosa Keratella ticinensis Keratella ticinensis Keratella ticinensis
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