niger, Oligopus Risso [A.] 1827:338 [Histoire naturelle des principales productions de l'Europe méridionale v. 3; ref. 3757] Nice, France, northwestern Mediterranean Sea. No types known. Appeared first as "l'Oligopode noir" of Risso in Cuvier 1816. •Synonym of Oligopus ater Risso 1810 -- (Cohen & Nielsen 1978:49 [ref. 881], Nielsen in Whitehead et al. 1986:1156 [ref. 13677]). •Synonym of Grammonus ater (Risso 1810) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448]). Current status: Synonym of Grammonus ater (Risso 1810). Bythitidae. Habitat: marine.