[05.v.1960, Russian] English translation by Israel Program for scientific translations, cat. no. 5108, as "Hydroids and Hydromedusae of the USSR", i-vi, 1-631, figs. 1-463, pls. 1- 30, tab. 1, l folding plate (1969).Descriptors: Bythotiara depressa, Oplorhiza diaphragmata, Halecium beringi, Nuditheca tetrandra, Schizotricha polaris, Naumovia microtheca, Wimveria divergens, Cryptolaria profunda, Plumularia linkoi, Plumularia moneroni, Polyplumaria gracilis, Abietinaria crassiparia, Abietinaria gagarae, Abietinaria macrotheca, Abietinaria raritheca, Abietinaria spiralis, Sertularella craticula, Sertularella zenkevitchi, Sertularia converrucosa, Sertularia staurotheca, Thuiaria barentsi, Thuiaria invicea, Thuiaria involuta, Thuiaria kudelini, Thuiaria lebedi, Thuiaria pinna, Thuiaria tetrastriata, Thuiaria uschakovi, Thuiaria wulfiusi, Bonneviella extensa, Bonneviella laevigata, Campanularia bigena, Errina porifera, Errinopora latifundata, Stylaster purpuratus, Schizotricha gracilis, Schizotricha pacificola