Zosterodasys henarensis Fernandez-Leborans & Alekperov, 1996

Vďačný, Peter & Tirjaková, Eva, 2012, Taxonomic revision of the ciliate genus Zosterodasys Deroux, 1978 (Protista: Ciliophora: Synhymeniida), Zootaxa 3345, pp. 34-58 : 54

Zosterodasys henarensis Fernandez-Leborans & Alekperov, 1996 (imprint 1995)

( Figs 9 E–G)

Zosterodasys derouxi Sola et al., 1990: 19 , figs 10–19 (junior primary homonym of Z. derouxi Aliev, 1990 ). Zosterodasys henarensis Fernandez-Leborans & Alekperov, 1996: 10 , fig. 11 (a new replacement name for Z. derouxi Sola et al., 1990 ); Jankowski 2007: 729.

Diagnosis. Size about 165–265 × 40–70 µm after osmium tetroxide fixation. Body shape very narrowly elliptical with constriction in anterior body quarter in vivo, providing cell with a Nassulopsis -like appearance. Macronucleus narrowly ellipsoidal with a single globular micronucleus. On average 75 (70–80) ciliary rows. Synhymenium completely encircles cell. About 17–20 nematodesmal rods. Freshwater.

Type locality. Henares River, Guadalajara, Spain.

Type material. Deposition of type material not mentioned either by Sola et al. (1990) or Fernandez-Leborans & Alekperov (1996).

Etymology. Not given in the original paper. The Latin adjective henarens · is, - is, - e [m, f, n] obviously refers to type locality, the Henares River, in which the species was discovered.

Remarks. Fernandez-Leborans & Alekperov (1996) replaced Z. derouxi Sola et al., 1990 by a new substitute name, Z. henarensis , because Z. derouxi Sola et al., 1990 is a junior primary homonym of Z. derouxi Aliev, 1990 and has no synonyms [Articles 60.1 and 60.3 of the ICZN (1999)]. Zosterodasys henarensis can be neotypified because no type material is available and several details of live morphology (body size, contractile vacuole pattern, cortical granulation) have been not described. The generic home of this species is doubtful because of the Nassulopsis -like body shape.

Figures

FIGURE 9. Va ri ou s Zosterodasys species and their supposed synonyms from life (E), after Heidenhain’s haematoxylin stain (A), after silver carbonate (C, D, F – H) and protargol (B) impregnation. (A) Zosterodasys hisioensis, ventral view of a representative specimen. Length 200 µm. From Ozaki & Yagiu (1941). (B) Zosterodasys texensis, total ventral view of ciliary pattern and nuclear apparatus. From Alekperov et al. (2007 / 8). Reprinted by permission from “ Protistology ”, 2007 / 2008, 5 (2 / 3): 101 – 130. (C, D, H) Zosterodasys serrani, frontal view of oral opening (C) and ventral (D) as well as dorsal (H) view of ciliary pattern and nuclear apparatus. Arrowheads denote synhymenium which is restricted to the ventral body side (D). Length not provided. From Fernandez-Leborans (1990). (E – G) Zosterodasys henarensis, ventral view of a representative specimen (E) and schematized ventral (G) as well as dorsal (F) view of ciliary pattern and nuclear apparatus. Arrowheads denote proximal and distal end of synhymenium that almost completely encircles the body. Length not provided. From Sola et al. (1990).