elongatus, Phucocoetes variegatus forma Smitt [F. A.] 1898:44, Pl. 5 [Bihang till Kongl. Svenska vetenskaps-akademiens handlingar. Stockholm v. 24 (afd. 4) (no. 5); ref. 4147] Puerto Madryn, 43°S, Argentina, sw Atlantic. Holotype (unique): NRM 11158. •Valid as Iluocoetes elongatus (Smitt 1898) -- (Gosztonyi 1977:215 [ref. 6103], Lloris & Rucabado 1987:56 [ref. 15955], Pequeño 1989:48 [ref. 14125], Anderson 1994:117 [ref. 21438], Pequeño 2000:88 [ref. 25224], Anderson & Fedorov 2004:14 [ref. 27603], Reyes 2007:75 [ref. 31564] as elongatum, Matallanas & Corbella 2012:1 [ref. 31967], Balushkin et al. 2011:976 [ref. 32449], Chiaramonte et al. 2023:210 [ref. 40423]). •Valid as Argentinolycus elongatus (Smitt 1898) -- (Matallanas & Corbella 2012:6 [ref. 31967]). Current status: Valid as Argentinolycus elongatus (Smitt 1898). Zoarcidae: Lycodinae. Distribution: Southwestern Atlantic. Habitat: marine.