A new member of the harpacticoid copepod family Tachidiidae Boeck, 1865 was found in sediment samples of meiobenthic harpacticoids taken during a study on the diversity of meiobenthic harpacticoids along the northern coast of the Persian Gulf. The taxonomic analysis of this material revealed that it contained an undescribed species. A new genus is herein proposed to accommodate the new species. The new genus, Pseudoneotachidius gen. nov., displays superficial similarities with Neotachidius Shen & Tai, 1963 and Cithadius Bowman, 1972, and a closer relationship is hypothesized with the former. The lack of a midventral copulatory pore, the female P5 endopodal lobe with two inner spines, and P1 with one inner seta on enp-3 are regarded here as synapomorphies for both Neothachidius and Pseudoneotachidius gen. nov. These two genera can be separated by several characters, including the structure and shape of the male fourth antennulary segment, segmentation of the antennary exopod, ornamentation of the male P2 enp-3, sexual dimorphism of the male P2 enp-2, structure and shape of the male P5, morphology of the male P2 and P3, male and female P5 armature complement and ornamentation, male P6, ventral spinulation pattern of the female genital-double somite, and in the mouthparts armature of among others. An updated key to the genera of the family Tachidiidae is presented.

在研究波斯湾北部海岸沿岸的类贝底类类拟兽类生物多样性的过程中所采集的类贝类类类拟贝类动物的沉积物样本中，发现了类类actic足类pe足类家族Tachidiidae Boeck的一名新成员，1865年。该材料的分类学分析表明，该材料包含未描述的物种。本文提出了新属来容纳新物种。新属，Pseudoneotachidius属。十一月，与Neotachidius Shen＆Tai，1963年和Cithadius的表象相似鲍曼（Bowman），1972年，并假设与前者的关系更为密切。缺少中腹交尾毛孔，雌性P5内隐叶有两个内棘，以及在enp-3上具有一个内刚毛的P1被认为是新拟睾吸虫和假单胞菌属的突触。年11月。这两个属可以由几个字符分开，包括雄性第四瓣膜节的结构和形状，触角外突的节段，雄性P2 enp-3的装饰，雄性P2 enp-2的性二态性，结构和形状雄性P5的形态，雄性P2和P3的形态，雄性和雌性P5的电枢互补和装饰，雄性P6，雌性双生殖器官的腹侧旋转模式以及其他口器的电枢。介绍了家族立科的最新钥匙。