Faculty of Science, Hokkaido University, N10 W8, Sapporo 060-0810, Japan.
Zootaxa. 2021 Jan 28;4920(2):zootaxa.4920.2.1. doi: 10.11646/zootaxa.4920.2.1.
The nemertean order Monostilifera consists of 594 species in 127 genera and is distributed worldwide. Within the Monostilifera, two suborders have been recognized, Cratenemertea and Eumonostilifera. Within the latter, two, unranked clade names, Oerstediina and Amphiporina, were recently proposed without formal taxonomic definition. In this article, I give morphological circumscriptions and clade definitions for Cratenemertea, Eumonostilifera, Oerstediina, Plectonemertidae, Oerstediidae, and Amphiporina. Oerstediina and Amphiporina are placed on the Linnaean rank of infraorder. Constituent genera and species for each higher taxon are tabulated. The genus Amphiporella Friedrich, 1939 is herein replaced with Germanemertes nom. nov. to avoid homonymy with the Carboniferous fossil bryozoan genus Amphiporella Girty, 1910. Loxorrhochmidae Diesing, 1862 is declared a nomen oblitum relative to Tetrastemmatidae Hubrecht, 1897, a nomen protectum under Article 23.9 of the International Code of Zoological Nomenclature. There remain 308 species of eumonostiliferans whose infraorder affiliation is uncertain due to the lack of information on vascular morphology and molecular sequence data. The suborder affiliation of the two species Cinclidonemertes mooreae Crandall, 2010 and Verrillianemertes schultzei Senz, 2001 is left uncertain.
有纽形动物门单殖亚门由 594 种，分为 127 属，分布于世界各地。在单殖亚门内，已识别出两个亚目，即克拉滕Nemertea 和真单殖Nemertea。在后者中，最近提出了两个未分级的分支名称，即 Oerstediina 和 Amphiporina，而没有正式的分类定义。在本文中，我为克拉滕Nemertea、真单殖Nemertea、Oerstediina、Plectonemertidae、Oerstediidae 和 Amphiporina 提供了形态定义和分支定义。Oerstediina 和 Amphiporina 被置于 Linnaean 亚目的等级。每个高级分类群的组成属和种都列在表中。Amphiporella Friedrich, 1939 属被替换为 Germanemertes nom. nov.，以避免与石炭纪化石苔藓虫属 Amphiporella Girty, 1910 同名。Loxorrhochmidae Diesing, 1862 相对于 Tetrastemmatidae Hubrecht, 1897 被宣布为废弃名称，后者是根据《国际动物命名法规》第 23.9 条的保护名称。由于缺乏血管形态学和分子序列数据，308 种真单殖Nemertea 的亚目分类仍然不确定。Cinclidonemertes mooreae Crandall, 2010 和 Verrillianemertes schultzei Senz, 2001 这两个种的亚目分类仍然不确定。
