nicolai, Notothenia Boulenger [G. A.] 1902:184, Pl. 15 [Report on the collections of natural history made in the Antarctic regions; ref. 561] Cape Adare, Antarctica, depth 5-8 fathom.; Duke of York Island, depth 4 fathoms. Syntypes: (5) BMNH 1901.11.8.63-64 (2) Cape Adare, 1901.11.8.65 (1); IRSNB 23 (1); MNHN (1). Type catalog: Walschaerts 1987:42 [ref. 20755]. •Valid as Trematomus nicolai (Boulenger 1902) -- (DeWitt et al. 1990:325 [ref. 21696], Eastman & Eakin 2000:16 [ref. 24631], Uzunova et al. 2020:[4] [ref. 37628], Eastman & Eakin 2021:[3] [ref. 38307], Frédérich et al. 2022:59 [ref. 39239], La Mesa et al. 2022:8 [ref. 39287]). •Valid as Pseudotrematomus nicolai (Boulenger 1901) -- (Miller 1993:214 [ref. 21297], Balushkin 2000:S97 [ref. 29555]). Current status: Valid as Pseudotrematomus nicolai (Boulenger 1902). Nototheniidae: Trematominae. Distribution: Southern Ocean. Habitat: marine.