Cryptodifflugia compressa, Penard, 1902

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 : 296-297

C. compressa Penard, 1902

Figs 3 a, 3b, 3c, 3d, 3e, 3f

Original description. Penard 1902, P. 428, Figs 1–3 .

Description. Shell small, ovate or widely elliptical, yellowish-brown, transparent, laterally compressed, elliptical in transverse section, surface smooth, without mineral inclusions, aperture circular or elliptical, very small, surrounded by an organic lip.

Measurements. Shell length 13–21 µm, shell width 9–21 µm.

Habitat. Freshwater, Sphagnum mosses, soil.

Geographical distribution. Cosmopolitan.

Figures

FIGURE 1. Different species of the genus Cryptodifflugia: a— C. angulata, lateral view, b – d— C. angusta, lateral view (b, c), apertural view (d), e – f— C. angustatostoma, narrow side lateral view (e), broad side lateral view (f), g— C. apiculata, lateral view, living specimen with cytoplasm, h – i— C. bassini, lateral view (h), apertural view (i). a—after Playfair 1917, b – d—after Schönborn 1965, e – f—after Beyens & Chardez 1982, g—after Cash 1904, h – i—after Bobrov 2001. Scale bar 20 µm.

FIGURE 2. Different species of the genus Cryptodifflugia: a – c— C. brevicolla, broad side lateral view (a), narrow side lateral view (b), living specimen with cytoplasm (c), d – e— C. collum, apertural view (d), lateral view of living specimen with cytoplasm (e). a – c—after Golemansky 1979, b – d—after Chardez 1971. Scale bar 20 µm.

FIGURE 3. Different species of the genus Cryptodifflugia: a – f— C. compressa, broad side lateral view (a, d), narrow side lateral view (b, e), apertural view (c, f), g – h— C. compressa angustioris, narrow side lateral view (g), broad side lateral view (h), i – k— C. compressa australis, broad side lateral view (i), narrow side lateral view (j), apertural view (k), l— C. compressa ovata, lateral view. a – f—after Penard 1902, g – h—after Tarnogradsky 1959, i – l—after Palyfair 1917. Scale bar 20 µm.