Zosterodasys minor Alekperov et al., 2007

Vďačný, Peter & Tirjaková, Eva, 2012, Taxonomic revision of the ciliate genus Zosterodasys Deroux, 1978 (Protista: Ciliophora: Synhymeniida), Zootaxa 3345, pp. 34-58 : 50

Zosterodasys minor Alekperov et al., 2007

( Figs 8 G, H)

Zosterodasys minor Alekperov et al., 2007 /8: 113, fig. 7, Pl 2A.

Diagnosis. Size about 50–60 × 30–40 µm in vivo. Body shape elliptical with left margin anteriorly distinctly projecting and thus forming a fold below it. Macronucleus ellipsoidal with a single globular micronucleus. Several contractile vacuoles evenly spaced along left postoral and posterior right body margin. About 33–36 ciliary rows: 18–21 ventral and 16–18 dorsal. Synhymenium incompletely encircles body. On average 15 (14–16) nematodesmal rods. Marine.

Type locality. Sediments from the Mexican Gulf sand beach near Marine Science Institute building, Port Aransas, Texas.

Type material. One holotype slide with protargol-impregnated specimens was deposited in the Institute of Zoology, NAS of Azerbaijan, Baku City.

Etymology. Not given in the original description. The Latin adjective min · or, - or, - us ([m, f, n]; small) obviously refers to the small body size.

Remarks. No nomenclatural or taxonomical difficulties.

Figures

FIGURE 8. Var i ou s Zosterodasys species and their supposed synonyms from life (A), after Heidenhain’s haematoxylin stain (J), and after protargol impregnation (B – I). (A – F) Zosterodasys minutus, ventral view of a representative specimen (A), variability of body shape and size as well as of the nuclear apparatus (B – D), ventral (E) and dorsal (F) view of ciliary pattern and nuclear apparatus. Note the S-shaped pattern of the synhymenium which completely encircles the cell (C – F). From Gong et al. (2007). (G, H) Zosterodasys minor, total ventral view of ciliary pattern (G) and dorsal view of ciliary pattern in anterior body region (H). From Alekperov et al. (2007 / 8). Reprinted by permission from “ Protistology ”, 2007 / 2008, 5 (2 / 3): 101 – 130. (I) Chilodontopsis vorax (?), total ventral view of ciliary pattern and nuclear apparatus. From Burkovsky (1970 a). (J) Zosterodasys numerosus, ventral view of a representative specimen showing many scattered contractile vacuoles. From Ozaki & Yagiu (1941).