FIGURE 1 in Biogeography and co-occurrence of 16 planktonic species of Keratella Bory de St. Vincent, 1822 (Rotifera, Ploima, Brachionidae) in lakes and reservoirs of the United States

FIGURE 1. Dorsal views of the loricas of 15 species of Keratella. a) Keratella americana, b) Keratella cochlearis, c) Keratella crassa, d) Keratella earlinae, e) Keratella mixta, f) Keratella testudo, g) Keratella hiemalis, h) Keratella quadrata, i) Keratella quadrata dispersa, j) Keratella serrulata, k) Keratella taurocephala, l) Keratella tecta, m) Keratella ticinensis, n) Keratella tropica, o) Keratella valga. Scale bar represents 50 µm.