Cryptodifflugia minuta 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 : 301

C. minuta ( Playfair, 1917) comb. nov.

Figs 5 e, 5f

Difflugiella minuta Grospietsch, 1964

Original description. Playfair 1917, P. 656, Table 138, Fig. 12.

Description. Shell small, ovate, circular in transverse section, rounded aborally, and with sides converging to a very narrow apertural part, aperture very narrow, often just a pore, with thickened rim, or sometimes with a very narrow but distinct collar, shell surface smooth.

Measurements. Shell length 10–13 µm, shell width 8–9 µm, aperture diameter 2–3 µm.

Habitat. Freshwater, bogs.

Geographical distribution. Australia, Russia, Crozet and Possession Island , Greenland, USA.

Figures

FIGURE 5. Different species of the genus Cryptodifflugia: a – d— C. lanceolata, broad side lateral view (a), narrow side lateral view (b), apertural view (c), d— C. leachi, lateral view of living cell, e – f— C. minuta, lateral view, g – k C. oviformis, lateral view of encysted specimen (g), lateral view (i), apertural view (h, j), lateral view of encysted specimen (k). a – c—after Golemansky 1970, d—after Nicholls 2006, e – f—after Palyfair 1917, g – h—after Page 1966, i – k—after Penard 1890. Scale bar 20 µm.