Bartsch Ilse
Forschungsinstitut Senckenberg, c/o DESY, Notkestr. 85, 22607 Hamburg, Germany.; Email:
Zootaxa. 2015 Feb 17;3919(2):201-59. doi: 10.11646/zootaxa.3919.2.1.
The genital region of juvenile and adult halacarid genera is described. Larvae are expected to be present in all, protonymphs at least in the majority of the genera. Two of the marine genera have three nymphal instars, in the others one or two nymphal instars are suppressed. Adults of marine species have one, two or three pairs of genital acetabula; intrageneric differences in the number of acetabula are present but rare. Derived from the number of perigenital setae and genital acetabula, in most genera it is the deutonymph which is suppressed, in a few others the tritonymph. Adults of species with two nymphal stages have either two or three pairs of acetabula, those with a single nymphal stage have either one or two pairs of acetabula. Two genera may lack the protonymphal stage, but more material is needed to prove the absence. The present-day classification is outlined and supplemented. Anomalohalacarus and Arenihalacarus are both assigned to the Anomalohalacarinae. The Halixodinae include Agaue, Bradyagaue and Halixodes, the knowledge of Australacarus and Colobocerasides is sparse, but they may have to be incorporated in the Halixodinae. The subfamily Halacarinae includes a single genus, namely Halacarus.
描述了幼体和成体海螨类属的生殖器区域。预计所有种类都有幼虫，至少大多数种类有若螨。两个海洋类属有三个若螨龄期，其他类属中一个或两个若螨龄期缺失。海洋物种的成体有一对、两对或三对生殖吸盘；吸盘数量在属内存在差异，但很少见。根据围生殖刚毛和生殖吸盘的数量推断，大多数属中缺失的是第二若螨，少数属中缺失的是第三若螨。具有两个若螨阶段的物种的成体有两对或三对吸盘，具有单个若螨阶段的物种的成体有一对或两对吸盘。两个属可能没有第一若螨阶段，但需要更多材料来证实其缺失。概述并补充了当前的分类。异常海螨属和沙海螨属都被归入异常海螨亚科。海螨亚科包括阿高海螨属、缓阿高海螨属和海螨属，对澳海螨属和瘤角海螨属的了解很少，但它们可能不得不归入海螨亚科。海螨亚科仅包括一个属，即海螨属。
