由于化石的保存状况以及标本的修理难度等多种原因，已经发表的材料中包括了大量的同物异名现象以及无效的属种。
For the reasons of preserve situation and the difficulty of preparation, there are a lot of synonym and the nomen dubium in the published taxa.
本文记载革螨2属和28种的新同物异名。
The present paper reports new synonyms of gamasid mites (2 genera and 28 species).
本文对这19个种编列了检索表，对每一个种均附有同物异名的订正、形态描述、显微照片及分析讨论。
In this paper the 19 species were made into a searching list. To every species, there were their corrected synonyms, morphology descriptions, micrographs and analysis discussions.
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