Jiménez F Agustín, Carreno Ramón A, Gardner Scott L
Department of Zoology, Southern Illinois University, Carbondale, Illinois 62901.
J Parasitol. 2013 Dec;99(6):1056-61. doi: 10.1645/13-196.1. Epub 2013 Aug 2.
Aspidodera kinsellai n. sp. (Heterakoidea: Aspidoderidae) from the 9-banded armadillo, Dasypus novemcinctus , is herein described. This nematode occurs from Costa Rica north through central Mexico where it can be found causing co-infections with Aspidodera sogandaresi . Aspidodera kinsellai n. sp. can be discriminated from this and all other species in the family based on 3 key features, including (1) conspicuous lateral grooves with no lateral alae starting immediately after the hood and terminating at the cloacal/anal region; (2) long hoods in both male (360 μm) and female (401 μm), and (3) a relatively long (152 μm) terminal spine or terminus that gradually tapers to a point from the last pair of papillae. This is the 18th recognized species of the family and the 3rd in the genus present outside of South America. A phylogenetic analysis of the species in the genus with the use of the mitochondrial partial genes cytochrome C oxidase subunit 1 (cox1), the ribosomal large subunit (rrnL), and the internal transcriber spacer (ITS) shows that 2 species of Aspidodera may have entered into North America from the south via 2 independent events.
本文描述了来自九带犰狳（Dasypus novemcinctus）的新种金氏阿斯皮多线虫（Aspidodera kinsellai n. sp.）（异尖科：阿斯皮多线虫科）。这种线虫分布于从哥斯达黎加向北至墨西哥中部的地区，在那里它可与索甘达雷斯阿斯皮多线虫（Aspidodera sogandaresi）形成混合感染。金氏阿斯皮多线虫（Aspidodera kinsellai n. sp.）可基于三个关键特征与该科的其他所有物种区分开来，包括：（1）明显的侧沟，无侧翼，从颈部后立即开始，止于泄殖腔/肛门区域；（2）雄性（360μm）和雌性（401μm）的颈部均较长；（3）相对较长（152μm）的末端棘或末端，从最后一对乳突逐渐向尖端变细。这是该科第18个被认可的物种，也是南美洲以外该属的第三个物种。利用线粒体部分基因细胞色素C氧化酶亚基1（cox1）、核糖体大亚基（rrnL）和内部转录间隔区（ITS）对该属物种进行系统发育分析表明，两种阿斯皮多线虫可能通过两次独立事件从南方进入北美洲。
