FIGURE 4. A–D in Comments on cladocerans of crater lakes of the Nevado de Toluca Volcano (Central Mexico), with the description of a new species, Alona manueli sp. nov.

FIGURE 4. A–D, Alonella pulchella Herrick, 1884 from Lago de la Luna Lake, volcano Nevado de Toluca, State of Mexico, parthenogenetic female: A, lateral view. B, sculpture of valves. C, postero-ventral corner of valves. D, postabdomen. E–H, Pleuroxus cf. denticulatus Birge, 1879 from Lago del Sol lake, volcano Nevado de Toluca, State of Mexico, parthenogenetic female: E, lateral view. F, postero-ventral corner of valves. G, postabdomen. H, distal marginal denticles of postabdomen. Scale bars denote 0.1 mm for A, G and E, F, 0.05 mm for B–D, F, H.