Durucan F., Dovgal I. New reports of suctorian ciliates (Ciliophora, Suctorea) epibiont on halacarid mites and a harpacticoid copepod from Türkiye. Marine Biological Journal, 2022, vol. 7, no. 3, pp. 28-33. https://doi.org/10.21072/mbj.2022.07.3.03



Suctorian ciliates are common epibionts on marine and freshwater invertebrates. In the present study, three epibiont suctorian ciliate species, viz. Praethecacineta halacari Schulz, 1933, Thecacineta calix (Schroder, 1907), and Thecacineta cothurnioides Collin, 1909, are reported. Hence, P. halacari was observed on the ventral side of the idiosoma and legs of halacarid mite Copidognathus brachystomus Viets, 1940 and ventral side of Copidognathus tabellio (Trouessart, 1894). T. calix was reported on halacarid mite Maracarus gracilipes (Trouessart, 1889) – a new host species for the ciliate. T. cothurnioides was found on two different harpacticoid copepod specimens. The species T. cothurnioides is recorded from Turkish coast for the first time. T. calix is reported from Antalya for the first time. Finding of P. halacari is the first record for Izmir area. The data on distribution of all registered suctorian species are provided as well.


F. Durucan

postdoc, PhD


I. Dovgal

chief researcher, D. Sc., Prof.




Baldrighi E., Dovgal I., Zeppilli D., Abibulaeva A., Michelet C., Michaud E., Franzo A., Grassi E., Cesaroni L., Guidi L., Balsamo M., Sandulli R., Semprucci F. The cost for biodiversity: Records of ciliate–nematode epibiosis with the description of three new suctorian species. Diversity, 2020, vol. 12, iss. 6, art. no. 224 (25 p.). https://doi.org/10.3390/d12060224

Chatterjee T., Dovgal I., Pešić V., Zawal A. A checklist of epibiont suctorian and peritrich ciliates (Ciliophora) on halacarid and hydrachnid mites (Acari: Halacaridae & Hydrachnidia). Zootaxa, 2018, vol. 4457, no. 3, pp. 415–430. https://doi.org/10.11646/zootaxa.4457.3.4

Chatterjee T., Dovgal I., Fernandez-Leborans G. A checklist of suctorian epibiont ciliates (Ciliophora) found on meiobenthic marine nematodes. Journal of Natural History, 2019a, vol. 53, no. 33–34, pp. 2133–2143. https://doi.org/10.1080/00222933.2019.1692085

Chatterjee T., Nanajkar M., Dovgal I., Sergeeva N., Bhave S. New records of epibiont Thecacineta calix (Ciliophora: Suctorea) from the Caspian Sea and Angriya Bank, Arabian Sea. Cahiers de Biologie Marine, 2019b, vol. 60, no. 5, pp. 445–451. https://doi.org/10.21411/CBM.A.C75BCBEA

Chatterjee T., Dovgal I., Nanajkar M. Report of ciliate epibionts (Ciliophora, Suctorea) on meiobenthic invertebrates from the Indian coast near Karwar, Karnataka. Protistology, 2020a, vol. 14, no. 2, pp. 84–88. https://doi.org/10.21685/1680-0826-2020-14-2-5

Chatterjee T., Dovgal I., Schizas N. V. Report of epibiont ciliates (Ciliophora) on harpacticoid copepods from Caribbean mesophotic reefs. Cahiers de Biologie Marine, 2020b, vol. 61, no. 1, pp. 131–136. https://doi.org/10.21411/CBM.A.E1C0E61

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Dovgal I., Chatterjee T., Ingole B. New records of Thecacineta cothurnioides and Trematosoma rotunda (Ciliophora, Suctorea) as epibionts on nematodes from the Indian Ocean. Protistology, 2009b, vol. 6, no. 1, pp. 19–23.

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Durucan F., Artüz M. L., Dovgal I. V. The first record of Paracineta irregularis (Ciliophora, Suctorea) as epibiont on Rhombognathus halacarid mite (Acari, Halacaridae) from the Sea of Marmara, Turkey. Protistology, 2019, vol. 13, no. 2, pp. 67–70. https://doi.org/10.21685/1680-0826-2019-13-2-4

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Second author’s (Igor Dovgal’s) work was carried out within the framework of IBSS state research assignment “Fundamental studies of population biology of marine animals, their morphological and genetic diversity” (No. 121040500247-0).



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