Recently, a high number of Entodiniomorphida species was discovered in Virunga mountain gorillas (Gorilla beringei beringei) in Rwanda compared to other primates. Thirteen species of five genera (Troglocorys, Gorilloflasca, Prototapirella, Troglodytella, and Opisthotrichum) were identified with 10 species in Gorilloflasca, Prototapirella, and Troglodytella being host-specific, to our current knowledge. The remaining three species have been described for other herbivorous mammals; Prototapirella gorillae for western lowland gorillas; Troglocorys cava for western lowland gorillas, chimpanzees, and guinea baboons; Opisthotrichum janus in the family Ophryoscolecidae is regarded as specific to African antelopes. Here, we show the first indication that wild herbivorous hindgut fermenting mammals might have rumen ophryoscolecids in the intestine sympatric with their native intestinal ciliates. We also describe three new Prototapirella species, P. sabyinyo, P. sulcata, and P. curiosa. The somatic ciliary zones of the three new species are atypical of Prototapirella while their buccal infraciliature is not different from that of other Prototapirella species.

最近，与其他灵长类动物相比，在卢旺达的维龙加山地大猩猩（Gorilla beringei beringei）中发现了大量的Entodiniomorphida种。根据我们目前的知识，已鉴定出五个属的13种（Troglocorys，Gorilloflasca，Prototapirella，Troglodytella和Opisthotrichum），其中Gorilloflasca，Prototapirella和Troglodytella的10种是宿主特有的。其余三个物种已被描述为其他草食性哺乳动物。西部低地大猩猩的原小球藻；穴居ava用于西部低地大猩猩，黑猩猩和几内亚狒狒；Ophryoscolecidae科的Janist Opisthotrichum janus被认为特定于非洲羚羊。在这里，我们显示出第一个迹象表明，野生草食性后肠发酵哺乳动物在肠道同胞中可能有瘤胃ophryoscolecids及其原生肠纤毛虫。我们还描述了三个新Prototapirella种，P。sabyinyo，P.苏卡达和P.珍品。这三个新物种的体毛睫状体区是原形非典型的，而它们的颊缘脆性与其他原形没有差异。