Summary The mature spermatozoon of Khawia armeniaca, a monozoic caryophyllidean parasite of templar fish Capoeta capoeta sevangi (De Filippi, 1865) from the Lake Sevan, Armenia, has been studied using transmission electron microscopy and cytochemical technique of Thiéry (1967) for the first time. The mature spermatozoon of K. armeniaca consists of a single axoneme with the 9+‘1’ trepaxonematan structure, cortical microtubules and nucleus which are situated parallel to the longitudinal axis of the spermatozoon, and a moderately electrondense cytoplasm with glycogen particles. The cortical microtubules are arranged in one continuous semicircle beneath the plasma membrane in Region II and anterior part of Region III of the mature spermatozoon. The two opposite rows of cortical microtubules are observed in the remaining nuclear and at the beginning of the postnuclear part (Regions III, IV) of the male gamete The number of cortical microtubules is remarkably variable in the spermatozoa of various Khawia species. K. armeniaca exhibits the highest number of cortical microtubules in comparison with K. sinensis and K. rossittensis. Glycogen was detected in the cytoplasm of prenuclear (II), nuclear (III) and postnuclear (IV) regions with different ultrastructural organization of the mature spermatozoon of K. armeniaca. Variations of sperm ultrastructural characters within caryophyllideans and other cestodes are discussed.

中文翻译：

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Khawia ameniaca（Cholodkovsky，1915）（石竹科：Lytocestidae）成熟精子的超微结构和细胞化学，Capoeta capoeta sevangi（De Filippi，1865）（Teleostei，鲤科）的寄生虫

摘要 首次使用透射电子显微镜和 Thiéry (1967) 的细胞化学技术对来自亚美尼亚塞凡湖的卡波塔卡波塔塞万吉 (De Filippi, 1865) 的单生代石竹寄生物 Khawia ameniaca 的成熟精子进行了研究。杏树的成熟精子由具有 9+'1' trepaxonematan 结构的单个轴丝、平行于精子纵轴的皮质微管和细胞核以及具有糖原颗粒的中等电子密度的细胞质组成。成熟精子的II区和III区前部的质膜下方，皮质微管排列成一个连续的半圆。在雄性配子的剩余核和核后部分（区域 III、IV）的开始处观察到相对的两排皮质微管。皮质微管的数量在各种 Khawia 物种的精子中存在显着差异。与 K. sinensis 和 K. rossittensis 相比，K. ameniaca 表现出最多数量的皮质微管。在杏树成熟精子的具有不同超微结构组织的核前（II）、核（III）和核后（IV）区域的细胞质中检测到糖原。讨论了石竹类和其他绦虫类精子超微结构特征的变化。