Moravec Frantisek, Justine Jean-Lou
Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Ceske Budejovice, Czech Republic.
Institut Systematique, Evolution, Biodiversite, Museum National d'Histoire Naturelle, Sorbonne Universites, Paris, France.
Folia Parasitol (Praha). 2017 Apr 5;64:2017.011. doi: 10.14411/fp.2017.011.
Based on light and scanning electron microscopical studies, two new species of parasitic nematodes are described from marine perciform fishes off New Caledonia: Cucullanus epinepheli sp. n. (Cucullanidae) from the intestine of the brownspotted grouper Epinephelus chlorostigma (Valenciennes) (Serranidae) and Procamallanus (Spirocamallanus) sinespinis sp. n. from the intestine of the silver grunt Pomadasys argenteus (Forsskål) (Haemulidae). Cucullanus epinepheli sp. n. differs from its congeners mainly in possessing a unique structure of the anterior, elevated cloacal lip with a large posterior outgrowth covering the cloacal aperture and in the presence of cervical alae and two small preanal papillae on the median dome-shaped precloacal elevation. This is the second known nominal species of this genus parasitising fishes of the family Serranidae and the second representative of Cucullanus Müller, 1777 recorded from fishes in New Caledonian waters. Procamallanus (Spirocamallanus) sinespinis sp. n. is mainly characterised by 10-12 spiral ridges in the buccal capsule, the presence of wide caudal alae, three pairs of pedunculate preanal papillae, two unequally long spicules (465-525 µm and 218-231 µm) and by the tail tip with a knob-like structure in the male, and the broad, rounded tail with a terminal digit-like protrusion without cuticular spikes in the female. This is the fifth nominal species of the subgenus Spirocamallanus Olsen, 1952 reported from fishes in New Caledonian waters.
基于光学显微镜和扫描电子显微镜研究，描述了来自新喀里多尼亚附近海洋鲈形目鱼类的两种寄生线虫新物种：来自黑点石斑鱼Epinephelus chlorostigma（瓦朗谢纳）（鮨科）肠道的Cucullanus epinepheli sp. n.（库氏线虫科）和来自银鳍笛鲷Pomadasys argenteus（福斯科尔）（石鲈科）肠道的Procamallanus（Spirocamallanus）sinespinis sp. n.。Cucullanus epinepheli sp. n.与其同属物种的主要区别在于，其具有独特的前部结构，泄殖腔唇隆起，有一个大的后部突出物覆盖泄殖腔孔，并且在中线上穹形泄殖腔前隆起处有颈翼和两个小的肛前乳头。这是该属中已知的第二个寄生于鮨科鱼类的命名物种，也是1777年记录的来自新喀里多尼亚水域鱼类的Cucullanus Müller属的第二个代表物种。Procamallanus（Spirocamallanus）sinespinis sp. n.的主要特征是口腔囊中有10 - 12条螺旋脊，有宽的尾翼，三对带柄的肛前乳头，两根不等长的交合刺（465 - 525微米和218 - 231微米），雄性尾尖有一个瘤状结构，雌性尾部宽阔、圆形，末端有一个指状突起且无表皮刺。这是1952年奥尔森报道的来自新喀里多尼亚水域鱼类的Spirocamallanus亚属的第五个命名物种。
