A representative of the family Ectinosomatidae was discovered in a temporary pool in a cave in the Satun Province, southern Thailand. Based on the characteristics of the antennary exopod, armature of the female fifth leg, and configuration of the male sixth leg, a new species of the genus Rangabradya was identified, representing the first record of the genus in the continental waters of Thailand and in Southeast Asia. The new species can be distinguished from Rangabradya indica by the configurations of the fifth and the sixth legs in both sexes, the body ornamentation of the urosomite, and the armature of the mouthparts. These structures show a more primitive state in the new species. Accordingly, a new subgeneric rank in the genus Rangabradya, Siamorangabradyasubgen. nov, was established to accommodate the Thai species and Rangabradya (Siamorangabradya) wongkamhaengaesubgen. et sp. nov. was described. Also, the key to all 23 genera of the family was updated.

中文翻译：

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来自泰国南部沙敦府一个山洞的Rangabradya的新种（Har足类，Harpacticoida，Ectinosomatidae）

在泰国南部沙敦府的一个山洞里的一个临时水池中发现了一个昆虫纲科的代表。根据触角外足的特征，雌性第五条腿的电枢和雄性第六条腿的构造，确定了兰格拉底亚属的一个新物种，代表了该物种在泰国大陆水域和东南部地区的第一记录。亚洲。该新物种可以通过两性的第五条腿和第六条腿的形态，Urosomite的身体装饰以及口器的电枢而与印度的Rangabradya区分开。这些结构在新物种中显示出更原始的状态。因此，在Rangabradya属Siamorangabradyasubgen中有一个新的亚属等级。十一月 建立以容纳泰国物种和Rangabradya（Siamorangabradya）wongkamhaengaesubgen。等。十一月 被描述。此外，更新了该家族所有23个属的钥匙。