Dvojnos G M, Kharchenko V A, Lichtenfels J R
Institute of Zoology, Kiev, GSP, Ukraine.
J Parasitol. 1994 Apr;80(2):312-6.
Coronocyclus ulambajari n. sp. (Strongyloidea: Cyathostominae) from horses of Mongolia is described. The external leaf-crown (ELC) of the new species consists of 28 elements and the internal leaf-crown (ILC) of approximately 80 elements. A spindle-shaped (in optical section) mouth collar support is separated anteriorly from the buccal capsule and connected to it and elements of leaf-crowns by bundles of connective tissue. The buccal capsule is cylindrical, circular in cross-section, and approximately 3 times as wide as deep. A large, tongue-like dorsal cone protrudes from the floor of the buccal capsule overlying the large dorsal esophageal tooth. The duct of the dorsal esophageal gland opens at the tip of the dorsal cone. The tail and vagina of females are short, and the vulva is close to the anus. The buccal capsule and dorsal cone are most similar to Coronocyclus labratus, but differ significantly in size of dorsal cone and relative width and depth of the buccal capsule as well as characteristics of the leaf-crowns and female reproductive systems.
描述了来自蒙古马的乌兰巴扎日环冠线虫新种（圆线目：杯冠亚科）。新种的外叶冠由28个部分组成，内叶冠约有80个部分。纺锤形（在光学切片中）的口环支撑在前方与颊囊分离，并通过结缔组织束与颊囊及叶冠部分相连。颊囊呈圆柱形，横截面为圆形，宽约为深的3倍。一个大的舌状背锥从颊囊底部突出，覆盖着大的背侧食管齿。背侧食管腺导管开口于背锥顶端。雌性的尾部和阴道较短，阴门靠近肛门。颊囊和背锥与唇环冠线虫最为相似，但在背锥大小、颊囊的相对宽度和深度以及叶冠和雌性生殖系统特征方面存在显著差异。
