Ceriodaphnia reticulata

(Figs. 11 – 12) Length about 0.6 mm, width about 0.6 of length. In lateral view, ephippium almost semicircular; dorsal margin straight; ventral margin regularly curved from postero-ventral angle to antero-ventral portion which is almost perpendicular to dorsal margin (Figs. 11 A – C, 12 A – D). Paired latero-dorsal ridges absent (Fig. 11 B). A depression along dorsum separating two halves of ephippium well-visible (Fig. 11 B); sculpture of dorsal plate without any wrinkles, without any spots, covered by thin, minute filiform projections (Fig. 11 D). Egg locule very slightly extends laterally, without any wrinkles; in general smooth, but bearing minute tubercles (Figs. 11 E – F) too small to make the surface non-transparent (Figs. 12 D – F). Space between egg locule and dorsal margin with same sculpture. The rest of ephippium with obscure (under SEM) polygonal reticulation (Fig. 11 E) – external sign of air-spaces which are well visible under light microscope (Figs. 12 C – D), and sculpture as in egg locule. Ephippium with narrow ventral rim and obscure reticulation, lacking any tubercles (Figs. 11 C, 12 F).