bergi, Cryptacanthoides Lindberg [G. U.] in Soldatov & Lindberg 1930:484, Figs. 66-67 [Izvestiia Tikhookeanskogo Nauchno-Issledovatel'skogo Instituta Rybnogo Khoziaistva i Okeanografii [Proceedings, Pacific Research Institute of Fisheries and Oceanography, TINRO, Moskva] v. 5; ref. 4164] Peter the Great Bay, Japan Sea, Russia. Holotype (unique): missing, not at ZIN. Type catalog: Balushkin et al. 2012:157 [ref. 33667]. Possibly the same as C. aleutensis (Gilbert 1896) according to Mecklenburg 2003:2 [ref. 27297]. Original genus should have been spelled Cryptacanthodes. •Valid as Cryptacanthoides bergi Lindberg 1930 -- (Lindberg & Krasyukova 1975:21 [ref. 7348], Amaoka in Masuda et al. 1984:303 [ref. 6441], Sokolovskaya et al. 1998:13 [ref. 24670], Nakabo 2000:1054 [ref. 25182] as Cryptacathoides, Nakabo 2002:1054 [ref. 26193] as Cryptacathoides). •Valid as Cryptacanthocephoides [sic] bergi Linberg 1930 -- (Shinohara et al. 2011:53 [ref. 31715]). •Valid as Cryptacanthodes bergi Lindberg 1930 -- (Mecklenburg 2003:2 [ref. 27297], Antonenko et al. 2011:173 [ref. 32454], Radchenko et al. 2011:487 [ref. 32458], Shinohara et al. 2014:269 [ref. 33330], Parin et al. 2014:453 [ref. 33547], Schnell & Hilton 2014:189 [ref. 35299], Dyldin & Orlov 2017:76 [ref. 35138], Choi et al. 2021:190 [ref. 38299], Dyldin & Orlov 2021:855 [ref. 38925], Dyldin et al. 2021:55 [ref. 38804]). Current status: Valid as Cryptacanthodes bergi Lindberg 1930. Cryptacanthodidae. Distribution: Northwestern Pacific: Sea of Japan. Habitat: brackish, marine.