Moravec František, Justine Jean-Lou
Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, České Budějovice, Czech Republic.
Institut Systématique Évolution Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, EPHE, 57 Rue Cuvier, CP 51, 75005, Paris, France.
Syst Parasitol. 2019 Apr;96(3):299-310. doi: 10.1007/s11230-019-09850-2. Epub 2019 Mar 19.
Two species of cucullanid nematodes collected from the intestine of marine fishes off New Caledonia were studied with the use of light and scanning electron microscopy (SEM): Dichelyne (Cucullanellus) bodiani n. sp. from Bodianus perditio (Quoy & Gaimard) (Perciformes: Labridae), characterised mainly by the small size of the body (males and gravid females 2.26-3.13 mm and 2.46-3.32 mm long, respectively), the presence of very long spicules (1.53-1.66 mm in length), the remarkably large seminal vesicle and the arrangement of caudal papillae, is the second known species of Dichelyne Jägerskiöld, 1902 parasitising fishes of the Labridae and the second nominal species of this genus recorded from fishes in New Caledonian waters. Cucullanus hansoni Olsen, 1952, originally described from Hawaii, is now, after 67 years, again reported from its type-host, Sufflamen fraenatum (Latreille) (Tetraodontiformes: Balistidae), from off New Caledonia. The SEM examination of C. hansoni, used in this species for the first time, revealed some new morphological details, such as the presence of a median precloacal cuticular elevation or the shape of deirids and distal tips of spicules, as well as the exact location of caudal papillae and phasmids in the male. This is the seventh species of Cucullanus Müller, 1777 recorded from fishes off New Caledonia.
利用光学显微镜和扫描电子显微镜（SEM）对从新喀里多尼亚附近海鱼肠道中采集的两种异尖线虫进行了研究：一种是来自博氏普提鱼（Bodianus perditio，Quoy & Gaimard）（鲈形目：隆头鱼科）肠道的博氏迪氏线虫（Dichelyne (Cucullanellus) bodiani）新种，其主要特征为虫体较小（雄虫和怀卵雌虫分别长2.26 - 3.13毫米和2.46 - 3.32毫米）、具有非常长的交合刺（长度为1.53 - 1.66毫米）、精囊非常大以及尾乳突的排列方式，它是已知的第二种寄生于隆头鱼科鱼类的迪氏线虫属（Dichelyne Jägerskiöld，1902）线虫，也是该属在新喀里多尼亚水域鱼类中记录的第二个命名种。1952年最初从夏威夷描述的汉氏异尖线虫（Cucullanus hansoni Olsen），在67年后，再次从其模式宿主——新喀里多尼亚附近的细纹扳机鲀（Sufflamen fraenatum，Latreille）（鲀形目：鳞鲀科）中被报道。首次对汉氏异尖线虫进行的扫描电子显微镜检查揭示了一些新的形态学细节，如泄殖腔前中线上的角质隆起、颈乳突的形状和交合刺的远端末梢，以及雄虫尾乳突和尾感器的准确位置。这是在新喀里多尼亚附近海鱼中记录到的第七种缪勒异尖线虫属（Cucullanus Müller，1777）线虫。
