Aspidisca orthopogon Deroux & Tuffrau, 1965

Kim, Ji Hye, Omar, Atef & Jung, Ji Hye Moon and Jae-Ho, 2020, Taxonomy of 16 indigenous ciliate species (Protozoa, Ciliophora) from South Korea, Journal of Species Research 9 (4), pp. 427-442 : 429

publication ID

https://doi.org/ 10.12651/JSR.2020.9.4.427

DOI

https://doi.org/10.5281/zenodo.13139416

persistent identifier

https://treatment.plazi.org/id/038E8795-FFF2-9300-FF0F-FB98FC22D31D

treatment provided by

Felipe

scientific name

Aspidisca orthopogon Deroux & Tuffrau, 1965
status

 

2. Aspidisca orthopogon Deroux & Tuffrau, 1965 View in CoL

( Fig. 2 View Fig )

Material examined. Marine water with some debris (salinity, 29.3‰) collected from Hamdeok Beach , Jocheoneup, Jeju-si, Jeju-do, Korea (33°32′36″N 126°39′51″E) on 8 Jun 2019 GoogleMaps .

Diagnosis. Body size in vivo 95-105 × 55-65 μm (n =3); broad elliptical; 1 small and 7 distinct frontoventral cirri with polystyla -arrangement; single contractile vacuole located subterminally; 5 transverse cirri; 4 dorsal kineties; adoral zone of membranelles (AZM) bipartite, AZM1 composed of 4 membranelles; AZM2 composed of 41-45 membranelles, posterior thorn-like projection absent.

Distribution. China, Korea (Type locality is not mentioned).

Remarks. The Korean population of Aspidisca orthopogon corresponds very well to the Chinese population ( Li et al., 2008). They only differ in the absence (vs. presence) of the thorn-like projection in the rear body end. Aspidisca orthopogon is also similar to A. magna in the body size (95-105× 55-65 μm vs. 50-100× 40-80 μm), but can be easily distinguished from this species and other congeners by the enormous posterior adoral zone (AZM2), which is composed of 41-45 membranelles (vs. 12-13 in A. aculeata , 15-18 in A. magna , and 14-21 in A. leptapsis ) ( Li et al., 2008; 2010).

Voucher slides. Two slides with protargol-impregnated specimens were deposited at the National Institute of Biological Resources (NIBRPR0000110192, NIBRPR0000 110193).

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