College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea.
College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea.
Korean J Parasitol. 2021 Dec;59(6):645-649. doi: 10.3347/kjp.2021.59.6.645. Epub 2021 Dec 22.
Total 513 heterophyid flukes were collected from a carcass of wild Korean raccoon dog, Nyctereutes procyonoides koreensis, in Korea. With morphological and molecular characteristics, the flukes were identified to Cryptocotyle lata. The adult C. lata were minute, transparent, pentagonal, 522 µm long by 425 µm wide. Ceca extended into post-testicular region. Ventrogenital sac elliptical, 79 µm by 87 µm with genital pore and ventral sucker. Two testes semielliptical and slightly lobed, located in the posterior region, right testis 173 µm by 155 µm, left testis 130 µm by 134 µm. In a phylogenetic tree, the fluke specimen of this study was grouped with C. lata divergent from Cryptocotyle lingua. We report here N. procyonoides koreensis first as a natural definitive host of C. lata.
从韩国一只野生朝鲜狗獾的尸体中收集了 513 只异形吸虫。通过形态学和分子特征，这些吸虫被鉴定为 C. lata。成虫 C. lata 微小、透明、五边形，长 522µm，宽 425µm。肠延伸到后睾丸区。生殖囊椭圆形，79µm×87µm，有生殖孔和腹吸盘。两个睾丸半椭圆形，略有叶状，位于后区，右睾丸 173µm×155µm，左睾丸 130µm×134µm。在系统发育树中，本研究的吸虫标本与 C. lingua 分化的 C. lata 聚在一起。我们首次报道 N. procyonoides koreensis 是 C. lata 的天然终末宿主。
