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首页> 外文期刊>Journal of Parasitology >OXYURICASSIS EKSTROMI N. SP. (OXYURIDA: PHARYNGODONIDAE) FROM LASIANCISTRUS SAETIGER (SILURIFORM: LORICARIIDAE) FROM THE EASTERN AMAZON
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OXYURICASSIS EKSTROMI N. SP. (OXYURIDA: PHARYNGODONIDAE) FROM LASIANCISTRUS SAETIGER (SILURIFORM: LORICARIIDAE) FROM THE EASTERN AMAZON

机译:oxycricassis ekstromi n. sp。 (Oxyurida:咽喉植物(咽喉)来自亚马逊东部的Lasiancistrus saetiger(siluriform:loricariidae)

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摘要

Oxyuricassis ekstromi n. sp. is the third species of the genus described from the intestine of Lasiancistrus saetiger Armbruster in Brazil. This species can be easily differentiated from its congeners by the presence of a tooth-like sclerotized piece that occupies half of the stoma and absence of spine projections on the tail of both males and females. Also, males of the new species lack caudal alae present in Oxyuricassis coronatus and Oxyuricassis hexaspinatus. Additionally, we observed a different number and pattern of the distribution of cloacal papilla; males of O. coronatus and O. hexaspinatus have 1 pair of pre-cloacal and 2 pairs of post-cloacal papillae; while the new species has 1 pre-cloacal and 3 post-cloacal pairs of papillae.
机译:Oxyuricassis ekstromi n.sp.是巴西Lasiancistrus saetiger Armburster肠道中描述的该属第三种。该物种可以很容易地从同类中区分出来,因为它有一个牙齿状的硬化块,占据了气孔的一半,并且雄性和雌性的尾巴上都没有脊椎突出物。此外,新物种的雄性在冠状氧尿症和六棘氧尿症中缺乏尾侧翼。此外,我们观察到泄殖腔乳头的不同数量和分布模式;冠状鱼和六棘鱼的雄性有1对泄殖腔前乳头和2对泄殖腔后乳头;新种有1对泄殖腔前乳头和3对泄殖腔后乳头。

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