Cryptodifflugia pusilla, Playfair, 1917

Bobrov, Anatoly & Mazei, Yuri, 2017, A review of testate amoeba genus Cryptodifflugia Penard, 1890 (Phryganellina: Cryptodifflugiidae) with a key to species, Zootaxa 4282 (2), pp. 292-308 : 302-303

C. pusilla Playfair, 1917

Fig. 6 i

Difflugiella pusilla Grospietch, 1964

Original description. Playfair 1917, P. 658, Table 38, Fig. 20.

Description. Shell small, subsquare (length equal to width), lateral sides almost vertical and parallel, base of fundus rounded. Shell smooth, firm, chitinoid, structureless, without xenosoms. Aperture circular, its diameter being almost equal to maximum shell width.

Measurements. Shell length 10–22 µm, shell width 10–20 µm, aperture diameter—6–7 µm. Habitat. Water vegetation, wet mosses on rocks.

Geographical distribution. Cosmopolitan.

Figures

FIGURE 6. Different species of the genus Cryptodifflugia: a – b— C. oviformis fusca, lateral view of different specimens, c – e— C. paludosa, narrow side lateral view (c), apertural view (d), broad side lateral view (e), f – g— C. patinata, lateral view (f), apertural view (g), h— C. psammophila, lateral view, i— C. pusilla, lateral view, j— C. pusilla conica, lateral view. a, b—after Penard 1890, c – e—after Golemansky 1981, f – g—after Schönborn 1965, h—after Golemansky 1970, i, j—after Playfair 1917. Scale bar 20 µm.