Zosterodasys minutus Gong et al. 2007
Zosterodasys minutus Gong et al. , 2007 (Figs 8 A–F, I) Chilodontopsis vorax (?) – Burkovsky 1970 a: 54, fig. 9; Burkovsky 1970 b: 187 (very likely a distinct species; see remarks). Zosterodasys minuta Gong et al. , 2007: 307, figs 38–52. Diagnosis. Size about 50–100 × 20–40 µm in vivo . Body shape...
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Zenodo
2012
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| Online Access: | https://dx.doi.org/10.5281/zenodo.5630277 https://zenodo.org/record/5630277 |
| Summary: | Zosterodasys minutus Gong et al. , 2007 (Figs 8 A–F, I) Chilodontopsis vorax (?) – Burkovsky 1970 a: 54, fig. 9; Burkovsky 1970 b: 187 (very likely a distinct species; see remarks). Zosterodasys minuta Gong et al. , 2007: 307, figs 38–52. Diagnosis. Size about 50–100 × 20–40 µm in vivo . Body shape obovate with left margin anteriorly indistinctly projecting. Macronucleus ellipsoidal to bowknot-shaped with three comparatively large (4–10 µm) globular micronuclei. Many scattered contractile vacuoles. About 34–55 ciliary rows; ventral kineties form a suture in meridional and posterior body half. Synhymenium completely encircles body. On average 11 (10–12) nematodesmal rods. Marine. Type locality. Intertidal muddy sediments of Ganghwa Island, Incheon, Korea, E 126 ° 32 ' N 37 ° 35 '. Type material. One holotype slide with protargol-impregnated specimens was deposited in the Natural History Museum, London, UK (registration number 2007:03:09: 3). One paratype slide with protargol-impregnated specimens was deposited in the Regional Research Center for Coast Environments of Yellow Sea, Inha University, Incheon, Korea (registration number G 06052003). Etymology. The Latin adjective minut · us , - a , - um ([m, f, n]; minute) refers to the small size of the species. Remarks. Under the Articles 30.2. 4, 31.2 and 34.2 of the ICZN (1999) we mandatorily change the species group-name from minuta to minutus because Zosterodasys is masculine gender. Zosterodasys minutus is outstanding among marine congeners in having a suture formed by the ventral ciliary rows in the meridional and posterior body half. This peculiar feature was also found in the marine “ Chilodontopsis vorax (?)” of Burkovsky (1970 a). However, Burkovsky’s species is much larger (130–160 × 46–50 µm vs. 50–100 × 20–40 µm) and has a higher number of the ciliary rows (50–80 vs. 34–55) as well as of the nematodesmal rods (16–18 vs. 10–12). Further, it displays only a single micronucleus with a size of 6 × 4 µm (vs. three micronuclei 4–10 µm in diameter). Thus, Burkovsky’s species, which was found in the Kandalakša [Kandalaksha] Gulf in the White Sea, very likely represents a distinct species and is therefore not incorporated into the diagnosis of Z. minutus . : Published as part of Vďačný, Peter & Tirjaková, Eva, 2012, Taxonomic revision of the ciliate genus Zosterodasys Deroux, 1978 (Protista: Ciliophora: Synhymeniida), pp. 34-58 in Zootaxa 3345 on pages 50-51, DOI: 10.5281/zenodo.281497 : {"references": ["Gong, J., Choi, J. K., Roberts, D. McL., Kim, S. Y. & Min, G. S. (2007) Morphological descriptions of new and little-known benthic ciliates from Ganghwa tidal flat, Korea. Journal of Eukaryotic Microbiology, 54, 306 - 316.", "Burkovsky, I. V. [Burkovskij, I. V.] (1970 a) Infuzorii mezopsammona Kandalaksskogo zaliva (Beloe more). II [The ciliates of the mesopsammon of the Kandalaksha Gulf (White Sea). II]. Acta Protozoologica, 7, 47 - 65 (in Russian with English title translation and summary).", "Burkovsky, I. V. [Burkovskij, I. V.] (1970 b) Infuzorii pescanoj litorali i sublitorali Kandalaksskogo zaliva (Beloe more) i analiz dannyh po faune bentosnyh infuzorij drugih morej [Ciliates of the sand littoral and sublittoral of Kandalaksha Gulf (White Sea) and the analysis on the fauna of benthic ciliates of other seas]. Acta Protozoologica, 8, 47 - 65 (in Russian with English title translation and summary)."]} |
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