Cryptodifflugia sacculus, (Penard, 1902) Deflandre, 1953

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 : 304

C. sacculus ( Penard, 1902) Deflandre, 1953

Fig. 7 a

Difflugiella sacculus Penard, 1902

Original description. Penard 1902, P. 429, Figs 1–6 .

Description. Shell elongated, oval-pyriform, with well expressed neck. Shell transparent, colorless or yellowish, usually with xenosomes or diatom frustules. Aperture circular.

Measurements. Shell length 16–30 µm, shell width 15–22 µm, aperture diameter 4–5 µm. Habitat. Freshwater, on water vegetation, submerged Sphagnum , wet green mosses, soils. Geographic 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.

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.

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.

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.

FIGURE 7. Different species of the genus Cryptodifflugia: a— C. sacculus, lateral view, b – c— C. sacculus sakotschawi lateral view (b), apertural view (c), d – e— C. splendida, lateral view of different specimens, f— C. valida, lateral view, g – h—C. voigti, lateral view (g), apertural view (h), i— C. vulgaris, lateral view. a—after Penard 1902, b – c—after Tarnogradsky 1959, d – eafter Schönborn 1965, f—after Playfair 1917, g – h—after Schmidt 1926, i—after Francé 1913. Scale bar 20 µm.