pennellii, Trematomus Regan [C. T.] 1914:12 [Annals and Magazine of Natural History (Series 8) v. 13 (no. 73); ref. 3661] Off Cape Adare, Antarctica, depth 45-50 fathoms. Syntypes: BMNH 1913.12.4.61-65 (5). •Valid as Trematomus pennellii Regan 1914 -- (DeWitt et al. 1990:326 [ref. 21696], Ozouf-Costaz et al. 1999:433 [ref. 23957], Eastman & Eakin 2000:16 [ref. 24631], Eastman & Eakin 2021:[3] [ref. 38307], Frédérich et al. 2022:59 [ref. 39239], La Mesa et al. 2022:6 [ref. 39287], Wang et al. 2024:4 [ref. 41309]). •Valid as Pseudotrematomus pennellii (Regan 1914) -- (Balushkin & Tarakanov 1987:358 [ref. 6226], Miller 1993:198 [ref. 21297], Balushkin 2000:S97 [ref. 29555]). Current status: Valid as Pseudotrematomus pennellii (Regan 1914). Nototheniidae: Trematominae. Distribution: Southern Ocean: circum-Antarctic. Habitat: marine.