Sokolov S G, Khasanov F K, Gordeev I I
Center of Parasitology, A.N. Severtsov Institute of Ecology and Evolution RAS, Leninskij prospect, 33, Moscow, 119071, Russia.
Lomonosov Moscow State University, Leninskie Gory, 1, Moscow, 119234, Russia.
Helminthologia. 2018 Jun 1;55(2):95-101. doi: 10.2478/helm-2018-0002. eCollection 2018 Jun.
The trematode (Zdzitowiecki, 1990) is a common intestinal parasite of the gadiform fishes of the Southern Ocean. In this work, we supplement the description of the species with the anatomy of the terminal part of the reproductive system and with molecular data. The male terminal genitalia are characterised by the presence of the external seminal vesicle and cirrus-sac. The external seminal vesicle is surrounded by aciniform groups of outer prostatic cells. Groups of outer prostatic cells and proximal parts of their ducts are associated with a thin-walled membrane that is connected to the proximal edge of the сirrus-sac. The cirrus-sac is claviform, with a long proximal part accommodating the tubular, thin-walled internal seminal vesicle and ducts of outer prostatic cells. The female terminal genitalia are represented by a thick-walled metraterm, which is surrounded by aciniform groups of glandular cells. Phylogenetic analysis based on 28S rDNA partial sequences data placed into the monophyletic group Lepidapedidae, including the species (Crowcroft, 1945), Durio et Manter, 1968, and Bray, Cribb et Barker, 1997. However, we were unable to detect direct phylogenetic connections between and .
这种吸虫（兹齐托维茨基，1990年）是南大洋鳕形目鱼类常见的肠道寄生虫。在本研究中，我们通过补充生殖系统末端部分的解剖结构和分子数据，完善了该物种的描述。雄性末端生殖器的特征是存在外部精囊和阴茎囊。外部精囊被前列腺外细胞的葡萄状群体包围。前列腺外细胞群体及其导管的近端部分与一层薄壁膜相连，该膜连接到阴茎囊的近端边缘。阴茎囊呈棒状，其长的近端部分容纳管状、薄壁的内部精囊和前列腺外细胞的导管。雌性末端生殖器由厚壁的子宫末端代表，其周围是腺细胞的葡萄状群体。基于28S rDNA部分序列数据的系统发育分析将其归入单系群鳞口科，该科包括物种（克罗夫特，1945年）、杜里奥和曼特，1968年，以及布雷、克里布和巴克，1997年。然而，我们未能检测到与之间的直接系统发育联系。
