Johnson Arthur A, Kleve Maurice G
Biology Department, Hendrix College, Conway, Arkansas 72032, USA.
J Parasitol. 2003 Dec;89(6):1186-90. doi: 10.1645/GE-3219.
On 18 August 2002, chironomid imagoes of Rheotanytarsus sp. emerged from the upper Mississippi River in Minnesota and yielded distinctive mermithid nematodes of a new mermithid species. Strelkovimermis papillosus n. sp. is distinguished from the other 14 species of the genus by the presence of unusually large cephalic papillae encircling the mouth and forming a rosette with the mouth in the center and by the absence of a fixator muscle in the males. Additionally, both sexes have very acute posterior ends, long amphids, and a long stoma. Strelkovimermis is revised by eliminating nondiscriminating parameters and accommodating the 15 known species. Intrageneric characteristics useful in separating species of Strelkovimermis are listed. Intensity of infection and intensity of infection versus sex were determined from 41 hosts. Where known, the hosts and geographical distribution are given for all 15 Strelkovimermis species.
2002年8月18日，明尼苏达州上密西西比河出现了摇蚊属的摇蚊成虫，并产出了一种新的索线虫属索线虫的独特线虫。乳头索线虫新种与该属的其他14个物种的区别在于，其口部周围有异常大的头部乳突，围绕口部形成一个以口部为中心的玫瑰花结，且雄性没有固定肌。此外，雌雄两性的后端都非常尖锐，有长的头感器，口也很长。通过消除无鉴别力的参数并纳入15个已知物种，对索线虫属进行了修订。列出了有助于区分索线虫属物种的属内特征。从41个宿主中确定了感染强度以及感染强度与性别的关系。在已知的情况下，给出了所有15个索线虫属物种的宿主和地理分布。
