Acineta (Dovgal, Igor & Pešić, Vladimir 2012)
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Ordo: Asparagales
Familia: Orchidaceae
Name
Acineta Dovgal, Igor, 2012 – Wikispecies link – Pensoft Profile
- Acineta Dovgal, Igor, 2012, Zootaxa 3166: 38-39.
Description
Description. Suctorian ciliate with trapeziform, weakly laterally flattened, loricated cell. There are two fascicles of tentacles located at the apical cell surface. Actinophores absent. Macronucleus rounded, centrally located. Lorica thin-walled, wrinkled. Stalk is solid, slightly apically extended. Measurements: Cell length 30–33 μm, width 23–28 μm, length of stalk 16–23 μm, diameter of stalk 4–5 μm.
Discussion
Remarks.Acineta Ehrenberg, 1834 is the largest suctorian genus comprising 62 species (Dovgal 2002) and many of these species are morphologically very similar (Curds 1985, Matthes et al. 1988). The examined specimens resemble Acineta tuberosa Ehrenberg, 1834, A. foetida Maupas, 1881 and A. fluviatilis Stokes, 1885, and differ from A. tuberosa by the slightly apically flared stalk and the presence of folds of the lorica (due to this character it differs also from A. fluviatilis), from A. foetida by the absence of characteristic disc-like widening at the tip of the stalk. Furthermore, it is worthy of note that both, Acineta tuberosa and A. foetida are marine species (Dovgal 1996). Since the variability of the above mentioned species needs to be examined in order to clarify the taxonomy, the introduction of a new name at this stage will create more confusion given the present state of knowledge. Acineta persiensis Dovgal & Peši é, 2007 (Fig. 7) New records.MONTENEGRO: Kolašin town, stream Bistrica, near village Crkvine, 1122 m. a.s.l., 42 ° 48 'N; 19 ° 27 'E, 30.ix. 2006, on Protzia invalvaris (Hydryphantidae); IRAN: Kerman Province, Jebal Barez Mts., Jiroft city, Temnoieh, Rezvan spring, 15. 6. 2009, on Nilotonia persica (Hydrachnidia, Anisitsiellidae).
Diagnosis
Diagnosis. Suctorian ciliate with pear-shaped, laterally flattened, loricated cell. There are two fascicles of tentacles located at the apical cell surface. Actinophores absent. Macronucleus in the form of irregular ellipse, located about centre of the cell. The very thick walls of lorica is characteristic for the species. There is short stalk composed of an adhesive disk.
Description
Measurements: Cell length 34–58 μm, width 34–41 μm, length of stalk 5–7 μm.
Distribution
Distribution.Iran (Dovgal & Pešiċ 2007, present paper; on Protzia sepasgosariani and Nilotonia persica); Montenegro (Dovgal & Pešiċ 2007, present paper; on Protzia invalvaris).
Taxon Treatment
- Dovgal, Igor; Pešić, Vladimir; 2012: Suctorian ciliates (Ciliophora, Suctorea) as epibionts of stream-dwelling aquatic beetles (Coleoptera) and water mites (Acari: Hydrachnidia) in the southwestern Palaearctic region, Zootaxa 3166: 38-39. doi
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