Cryptodifflugia horrida, Page, 1966

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 : 299

C. horrida Page, 1966

Figs 4 d, 4e, 4f

Difflugiella horrida Schönborn, 1965

Original description. Page 1966, P. 323, Fig. 9.

Description. Shell small, with length only slightly exceeding width, almost cylindrical, with broad aperture occupying almost entire lower side of the shell, shell surface covered by rare sand grains. Measurements. Shell length 13–17 µm, shell width 12–15 µm, aperture diameter 8–11 µm. Habitat. In thickets of Typha in waterbodies.

Geographical distribution. Bulgaria, Germany, Poland, Czech Republic, Spitsbergen, Vietnam.

Figures

FIGURE 4. Different species of the genus Cryptodifflugia: a— C. crenulata, lateral view, b— C. crenulata glabra, lateral view, c— C. crenulata globosa, lateral view, d – f— C. horrida, lateral view of empty shell (d), lateral view of living cell (e), apertural view of living cell (f). a, c—after Palyfair 1917, b, d – f—after Schönborn 1965. Scale bar 20 µm.