Besprozvannykh V V, Atopkin D M, Ngo H D, Ha N V, Tang N V, Beloded A Yu
Federal Scientific Center of the East Asia Terrestrial Biodiversity,Far Eastern Branch of the Russian Academy of Sciences.
Institute of Ecology and Biodiversity,Vietnamese Academy of Sciences and Technology,Hanoi,Vietnam.
J Helminthol. 2018 Nov;92(6):713-724. doi: 10.1017/S0022149X17000943. Epub 2017 Oct 17.
Adults of Skrjabinolecithum spinosum n. sp. were discovered in Mugil cephalus from the Gulf of Peter the Great in southern Far-East Russia. Additionally, adults of Unisaccus tonkini n. sp. were found in the intestine of Moolgarda cunnesius and Moolgarda seheli from the coastal waters of Cat Ba Island, Tonkin Bay, northern Vietnam. Skrjabinolecithum spinosum n. sp. possesses a larger body, and ventral and oral sucker size in comparison with Skrjabinolecithum vitellosum, a smaller pharynx size and body length/width rate ratio in comparison to Skrjabinolecithum pyriforme, a smaller body length and prepharynx size in comparison to Skrjabinolecithum lobolecitum and a smaller pharynx length and egg size in comparison to Skrjabinolecithum indicum and S. lobolecitum. The new species also differs from S. indicum, S. lobolecitum and S. vitellosum by the form of the testis, and from the last two species by the presence of a two-branched intestine. The morphometric parameters of S. spinosum n. sp. are similar to those of Skrjabinolecithum spasskii. However, S. spinosum n. sp., unlike S. spasskii, has an armed hermaphroditic duct. Unisaccus tonkini n. sp. is similar to Unisaccus spinosus (Martin, 1973), Unisaccus brisbanensis (Martin, 1973) and Unisaccus overstreeti (Ahmad, 1987) in body size but differs in oral sucker, pharynx and hermaphroditic sac size from U. spinosus, and in ventral sucker and ovary size from U. brisbanensis and U. overstreeti. Bayesian phylogenetic analysis, based on combined data of internal transcribed spacer 2 (ITS2) and partial 28S rRNA gene sequences, confirmed the validity of S. spinosum n. sp. and U. tonkini n. sp. Analysis of interrelationships of the family Haploporidae, including molecular data on new species, showed that the Waretrematinae subfamily is more heterogeneous in comparison with Haploporinae and Forticulcitinae, and includes U. tonkini n. sp.
在俄罗斯远东地区南部彼得大帝湾的鲻鱼体内发现了新种棘刺斯克里亚宾吸虫的成虫。此外，在越南北部东京湾吉婆岛沿海水域的库氏墨头鱼和塞氏墨头鱼的肠道中发现了新种东京单囊吸虫的成虫。与卵黄斯克里亚宾吸虫相比，棘刺斯克里亚宾吸虫新种的虫体更大，腹吸盘和口吸盘也更大；与梨形斯克里亚宾吸虫相比，咽更小，体长/体宽比更低；与叶状斯克里亚宾吸虫相比，体长和咽前体更小；与印度斯克里亚宾吸虫和叶状斯克里亚宾吸虫相比，咽长度和虫卵尺寸更小。新种在睾丸形态上也与印度斯克里亚宾吸虫、叶状斯克里亚宾吸虫和卵黄斯克里亚宾吸虫不同，并且与后两者不同的是具有双分支肠管。棘刺斯克里亚宾吸虫新种的形态测量参数与斯帕斯基斯克里亚宾吸虫相似。然而，与斯帕斯基斯克里亚宾吸虫不同的是，棘刺斯克里亚宾吸虫新种具有带刺的两性管。东京单囊吸虫新种在体型上与棘刺单囊吸虫（马丁，1973年）、布里斯班单囊吸虫（马丁，1973年）和奥弗斯特里特单囊吸虫（艾哈迈德，1987年）相似，但在口吸盘、咽和两性囊大小方面与棘刺单囊吸虫不同，在腹吸盘和卵巢大小方面与布里斯班单囊吸虫和奥弗斯特里特单囊吸虫不同。基于内部转录间隔区2（ITS2）和部分28S rRNA基因序列的组合数据进行的贝叶斯系统发育分析，证实了棘刺斯克里亚宾吸虫新种和东京单囊吸虫新种的有效性。对单孔科亲缘关系的分析，包括新物种的分子数据，表明与单孔亚科和福蒂库尔西纳亚科相比，瓦雷吸虫亚科更为异质，并且包含东京单囊吸虫新种。
