Bathyal Rissoidae (Gastropoda: Rissooidea) off the Russian Far East coast of the Sea of Japan, with redescription of Punctulum reticulatum Golikov, 1986 Author Hasegawa, Kazunori text Ruthenica, Russian Malacological Journal 2022 2022-04-01 32 2 85 92 http://dx.doi.org/10.35885/ruthenica.2022.32(2).5 journal article 10.35885/ruthenica.2022.32(2).5 2307-7336 11041109 Genus Frigidoalvania Warén, 1974: 125 Type species . Rissoa janmayeni Friele, 1878 , by original designation. Remarks . Although Criscione et al . [2019] suggested that this genus is genetically closely related to Punctulum , as noted above, it is provisionally retained as distinct because of differences in some morphological characters, including details of the anatomy and metapodial tentacles [Ponder, 1984], and the radula [ Hasegawa, 2014: 82 ].