Svaniulus ryvkini gen. nov., sp. nov., gonopods of ♂ holotype A left gonopods, mesal view B distal part of right promere, lateral view C right promere, caudal view D right opisthomere, meso-caudal view E same, oral view F distal part of the same, meso-caudal view. Scale bars: 0.1 mm (A–E), 0.05 mm (F). Abbreviations: bpp basoposterior process, dmp distomesal process, dr distal ridge, f flagellum, fc flagellum channel, g (supposed) gonocoxal gland, ml mesomeroidal lobe, mp mesal process, mr median ridge, msl mesal lobe of basoposterior process, p promere, pt posterior tube, s solenomere, sf spiniform filaments, sp apical process of solenomere.

  Part of: Vagalinski B, Golovatch SI (2021) The millipede tribe Brachyiulini in the Caucasus (Diplopoda, Julida, Julidae). ZooKeys 1058: 1-127.