Boullosa R G, Simões R O, Andrade-Silva B E, Gentile R, Maldonado A
Fundação Oswaldo Cruz (FIOCRUZ),Instituto Oswaldo Cruz,Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios,Av. Brasil,4365,Manguinhos,Rio de Janeiro,Brasil,CEP: 21040-360.
J Helminthol. 2019 May;93(3):352-355. doi: 10.1017/S0022149X18000251. Epub 2018 Apr 12.
A new species of Nippostrongylinae (Nematoda: Heligmonellidae), Stilestrongylus rolandoi n. sp., is described from specimens collected from the small intestine of the rodent Euryoryzomys russatus in the Atlantic Forest (Santo Amaro da Imperatriz, Santa Catarina state, southern Brazil). The genus Stilestrongylus includes 23 species, which parasitize rodents occurring in the Neotropical region. Stilestrongylus aureus (Durette-Desset & Sutton, 1985) from Argentina, S. azarai (Durette-Desset & Sutton, 1985) from Argentina, S. flavescens (Sutton & Durette-Desset, 1991) from Uruguay, S. franciscanus (Digiani & Durette-Desset, 2002) from Argentina, S. gracielae (Digiani & Durette-Desset, 2006) from Argentina, and S. oryzomysi (Sutton & Durette-Desset, 1991) from Argentina are closely related to Stilestrongylus rolandoi n. sp., all having caudal bursa patterns of types 1-4 in one of the lobes. Stilestrongylus rolandoi n. sp. is distinguished from the aforementioned species by its ray 6 being short in relation to rays 4 and 5, which are long and robust, and by having caudal bursa patterns of types 1-4 in both lobes. The new species has 27 ridges in the mid-body in males, and 24 in females, and has one of the highest ratios of spicule length to body length (21-33%) in this genus.
从巴西南部圣卡塔琳娜州伊姆佩拉特里斯圣阿马罗大西洋森林的啮齿动物红稻鼠小肠中采集的标本中，描述了一种新的类圆线虫亚科（线虫纲：嗜管科）物种——罗兰斯氏细圆线虫（Stilestrongylus rolandoi n. sp.）。细圆线虫属包括23个物种，寄生于新热带地区的啮齿动物。来自阿根廷的奥氏细圆线虫（Stilestrongylus aureus，Durette-Desset & Sutton，1985年）、来自阿根廷的阿氏细圆线虫（S. azarai，Durette-Desset & Sutton，1985年）、来自乌拉圭的淡黄细圆线虫（S. flavescens，Sutton & Durette-Desset，1991年）、来自阿根廷的弗朗西斯细圆线虫（S. franciscanus，Digiani & Durette-Desset，2002年）、来自阿根廷的格拉谢拉细圆线虫（S. gracielae，Digiani & Durette-Desset，2006年）以及来自阿根廷的稻鼠细圆线虫（S. oryzomysi，Sutton & Durette-Desset，1991年）与罗兰斯氏细圆线虫密切相关，它们在其中一个叶上都具有1 - 4型的尾伞模式。罗兰斯氏细圆线虫与上述物种的区别在于，其第6条射线相对于第4条和第5条射线较短，第4条和第5条射线长且粗壮，并且在两个叶上都具有1 - 4型的尾伞模式。该新物种雄性虫体中部有27条嵴，雌性有24条嵴，并且在该属中具有最高的交合刺长度与体长之比（21 - 33%）。
