Two new species of the order Plectida are described from Chatham Rise, New Zealand. Leptolaimus dififtinus sp. nov. is characterised by the short body 319–420 microns long, truncate labial region slightly offset from body contour and bearing conspicuous outer labial papillae, cephalic setae 1.3–1.4 microns long, amphid located 4–9 microns from anterior end, lateral alae originating from middle of buccal cavity length, female without supplements, male with precloacal and postcloacal pairs of subventral setae, nine tubular supplements (alveolar supplements absent), tubular supplements weakly S-shaped with pointed tip, spicules arcuate 24 microns or 1.4 cloacal body diameters long and dorsal gubernacular apophyses. Lavareda iramscotti sp. nov. is characterised by adult body length 3,023–3,121 microns long, eight longitudinal rows of body pores each with short papilla, cephalic setae 4–5 microns long, tail 146–165 microns long, male with spicules 54 microns long, gubernaculum with triangular apophyses, 20 precloacal supplements with bifid distal tips arranged in 9 + 1 + 10 pattern, female with vulva at 55% of body length from anterior and cuticularisation perpendicular to vagina at level of vulva. The present study provides the first record of a Leptolaimus species from the New Zealand region and the first description of a female specimen of the genus Lavareda.

中文翻译：

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来自新西兰查塔姆隆起的两种新线虫物种（Plectida：Leptolaimidae、Rhadinematidae）

新西兰查塔姆隆起描述了 Plectida 目的两个新物种。Leptolaimus diffiftinus sp. 十一月 特点是体短319-420微米，截形唇区略偏离体型，外唇乳突显着，头侧刚毛长1.3-1.4微米，两栖动物距前端4-9微米，侧翼起源于中部颊腔长度，雌性没有补充，雄性有泄殖腔前和泄殖腔后对腹侧刚毛，九个管状补充物（没有肺泡补充物），管状补充物弱 S 形尖尖，针状体弓形 24 微米或泄殖腔体长和背侧直径为 1.4管状骨突。Lavareda iramscotti sp. 十一月 特征是成年体长 3,023-3,121 微米，8 纵行体孔，每行有短乳头，头端刚毛长 4-5 微米，尾长 146-165 微米，雄性具针状体长 54 微米，总管具三角形突突，20 个泄殖腔前补充物，末端分叉排列成 9 + 1 + 10 模式，女性的外阴在身体长度的 55% 处，从前部和外阴水平垂直于阴道的角质层。本研究首次记录了新西兰地区的 Leptolaimus 物种，并首次描述了 Lavareda 属的雌性标本。女性的外阴从前部开始占体长的 55%，外阴水平垂直于阴道的角质层。本研究首次记录了新西兰地区的 Leptolaimus 物种，并首次描述了 Lavareda 属的雌性标本。女性的外阴从前部开始占体长的 55%，外阴水平垂直于阴道的角质层。本研究首次记录了新西兰地区的 Leptolaimus 物种，并首次描述了 Lavareda 属的雌性标本。