chalcogrammus, Sebastes (Murasoius) pachycephalus form Matsubara [K.] 1943:244 [Transactions Sigenkagaku Kenkyusyo No. 2; ref. 2905] Simonoseki, Japan. Holotype: Imp. Fish. Inst. No. 6317. Paratypes: (12). Called a form but treated as a subspecies and is regarded as available. •Apparently a synonym of Sebastes pachycephalus Temminck & Schlegel 1843. •Synonym of Sebastes pachycephalus Temminck & Schlegel 1843, but a valid subspecies -- (Lindberg & Krasyukova 1987:77 [ref. 15964], Nakabo 2000:595 [ref. 25086], Shimizu 2001:25 [ref. 25799], Nakabo 2002:595 [ref. 26001]). •Treated chalcogrammus and nudus as a valid species separate from S. pachycephalus, but no first reviser action taken -- (Kai et al. 2011:340 [ref. 31619]). •Synonym of Sebastes nudus Matsubara 1943 -- (Kai & Nakabo 2013:551 [ref. 32653]). Current status: Synonym of Sebastes nudus Matsubara 1943. Scorpaenidae: Sebastinae. Habitat: marine.