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Urocentrum turbo Lembadion bullinum Paranassula Frontonia mengi Frontonia tchibisovae Frontonia lynni Frontonia sinica Frontonia magna Frontonia subtropica Frontonia canadensis Frontonia salmastra Frontonia angusta Frontonia shii Frontonia vernalis Frontonia paravernalis Frontonia paramagna Frontonia vesiculosa Frontonia pusilla Frontonia anatolica Frontonia ocularis Frontonia fusca Frontonia didieri Frontonia elegans Apofrontonia dohrni Paramecium aurelia Paramecium caudatum Paramecium nephridiatum Paramecium woodruffi Paramecium calkinsi Paramecium putrinum Paramecium bursaria Frontonia acuminata Frontonia minuta Frontonia apoacuminata Frontonia atra Frontonia terricola Disematostoma minor Marituja Stokesia vernalis Disematostoma Tetrahymena rostrata Tetrahymena pyriformis
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