Didinium gargantua Meunier, 1910
publication ID |
https://doi.org/ 10.12651/JSR.2017.6 |
DOI |
https://doi.org/10.5281/zenodo.13164477 |
persistent identifier |
https://treatment.plazi.org/id/0C3D878B-6F7D-FFC4-DE2F-BEF6FBF8FA9D |
treatment provided by |
Felipe |
scientific name |
Didinium gargantua Meunier, 1910 |
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6. Didinium gargantua Meunier, 1910 View in CoL ( Fig. 6)
Material examined. Marine water (salinity 31‰) taken from Songji Lake , Oho-ri , Jugwang-myeon , Goseonggun, Gangwon-do, Korea (N38°20 ʹ 11 ʺ, E128°30 ʹ 58 ʺ) on April 28, 2017 GoogleMaps .
Diagnosis. Body size 55-60 × 35-40 μm in vivo; clubshaped; prominent proboscis; single contractile vacuole terminally located; proboscis extrusomes densely packed, length about 10 μm; colorless globules conspicuous, about 1.0 × 0.7 μm in size; spindle shaped cytoplasmic extrusomes sparsely scattered; number of somatic kineties associated with number of anterior and posterior ciliary girdles; anterior girdle kineties about 85 in number; posterior girdle kineties about 75 in number; 3 dorsal brush rows at anterior and posterior ciliary girdles; single macronucleus C or sausage shaped; marine habitat.
Distribution. China, U.S.A., Weddell Sea, Korea (this study).
Remarks. The Korean population of Didinium gargantua Meunier, 1910 can be separated from the population in the Weddell Sea by its body size (55-60 × 35-40 μm vs. 70-200 × 50-120 μm), and the number of somatic and ciliary girdle kineties (75-85 vs. 50-75) ( Petz et al., 1995). The Korean and U.S.A. populations of D. gargantua also have different body sizes (55-60× 35-40 μm vs. 70-100 × 40-80 μm), and numbers of somatic and ciliary girdle kineties (75-85 vs. 55-60) ( Alekperov et al., 2007 /8).
Didinium gargantua can be separated from D. nasutum (Müller, 1773) Stein, 1859 by body size (55- 60 × 35-40 μm vs. 80-200 × 60-140 μm), the number of dorsal brush rows (3 vs. 5), the position of the contractile vacuole (terminal vs. subterminal), and habitat (saline water vs. freshwater; Foissner et al., 1995).
Voucher slides. Two slides, including protargol-impregnated specimens, were deposited at the National Institute of Biological Resources, Korea (NIBRPR0000107904, NIBRPR0000107905).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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