The tribe Conchoeciini Chavtur Angel, 2011, which was singled out by Chavtur and Angel (2011) from the subfamily Conchoeciinae Müller, 1912, is divided into the new Conchoeciina subtribe, including all species of the genera Conchoecia Dana, 1849 and Porroecia (Martens, 1979), and the "non-Conchoeciina" group, which includes all the remaining genera in other subtribes. The genus Conchoecia is subdivided into five genera - retaining Conchoecia and establishing four new genera, namely Macrochoecilla Chavtur, gen. nov., Lophuroecia Chavtur, gen. nov., Parvidentoecia Chavtur, gen. nov .and Hyalocoecia Chavtur, gen. nov.. Similarly, a new genus, Parthenoecia Chavtur, gen. nov., is split from the genus Porroecia. All species attributed to these new genera, which have been collected by numerous Russian expeditions in the North Pacific, are described. Keys to these genera and their species are provided.