Study On The Trichodinid Ectoparasites (Ciliophora, Peritrichida) Rfom Some Freshwater And Estuarine Ifshes In Ningbo, Zhejiang Province’ China

Fourteen commercial fishes from Ningbo in Zhejiang Province, China, wereinvestigated for trichodinid parasites in this work, and nine of which were infected bythese parasites, including four esterarine fishes: Acanthogobius flavimanus, Sparusmacrocephalus, Periophthalmus cantonensis, Bostrychus sinensis and five freshwaterfishes: Carassius auratus, Aristichthys nobilis, Siniperca chuatsi,Misgurnus anguillicaudatus, Pelteobagrus vachellii.Twenty-four trichodinids in total were obtained, which belong to three genera ofOligohymenophora, Peritrichida, Mobilina, Trichodinidae, in this investigation. Twentysubmit to Trichodina Ehrenberg,1838: ie, Trichodina acanthogobae sp. nov.;Trichodina periophthalmae sp. nov.; Trichodina cobiti Lom,1961; Trichodina cuchiaeAsmat,2000; Trichodina caspialosae (Dogiel,1940) Lom,1962; Trichodina guliaeAsmat,2006; Trichodina maritinkae Basson&Van As,1991; Trichodina murmanicaPoljansky,1955; Trichodina domerguei (Wallengren,1897); Trichodina obtusiformisTao&Zhao2006; Trichodina reticulata Hirschman&Partsch,1955; Trichodina matsuBasson&Van As,1994; Trichodina lechriodentata Zhao&Tang,2007; Trichodinauniforma Van As&Basson,1989; Trichodina heterodentata Duncan,1977; Trichodinakazubski Van As and Basson,1989; Trichodina mutabilis Kazubski&Migala,1968;Trichodina nobilis Chen,1963; Trichodina acuta Lom,1961; Trichodina modest Lom,1970; three species in Trichodinella (Rabbe,1950) Sramek-Husek,1953: Trichodinellacapi Duncan,1977; Trichodinella epizootica (Rabbe,1950) Sramek～Husek,1953andTrichodinella subtilis Lom&Haldar,1977; and Tripartiella macrosoma Basson&Van As,1987belong to Tripartiella Lom，1959. Among them two were described as new forms,as well as one record of Asia, three records of China, one record of China mainland,seventeen records of Zhejiang Province and fifteen records of new hosts. Based on drysilver impregnated specimens and description of denticles, all of the trichodinids weredescribed. The dissertation expects to reinforce new content for parasitology of fish, providesome basic reference data for pathogeny which investigated in Zhejiang province,China.