gracilispinis, Etmopterus Krefft [G.] 1968:3, Fig. 2 [Archiv für Fischereiwissenschaft v. 19 (no. 1); ref. 7902] Off continental shelf of Uruguay, 34°01'S, 51°20'W, depth 600 meters. Holotype: ZMH 24989 [ex ISH 1051-1966]. Paratypes: ZMH 24989 [ex ISH 1051-1966], 24990 [ex ISH 1061-1966] (1), 24991 [ex ISH 1573-1966a-e] (5), ?24992 [ex ISH 935-1966] (1), Type catalog: Krefft 1978:5 [ref. 9884], Thiel et al. 2009:14-15 [ref. 30918]. •Valid as Etmopterus gracilispinis Krefft 1968 -- (Uyeno & Sasaki in Uyeno et al. 1983:64 [ref. 14275], Shirai in Amaoka et al. 1983:49, 165 [ref. 8379], Compagno 1984:76 [ref. 6474], Springer & Burgess 1985:585 [ref. 6785], Bianchi & Carpenter in Bianchi et al. 1993:82 [ref. 25472] as "gracilispinis", Heemstra in Smith & Heemstra 1995:v [ref. 21953], McEachran & Fechhelm 1998:116 [ref. 23897], Compagno 1999:473 [ref. 25589], Soto 2001:7 [ref. 26631], Soto 2001:66, 91 [ref. 26637], Last et al. 2002:203 [ref. 26556], Compagno 2003:399 [ref. 26984], Gadig & Gomes in Menezes et al. 2003:26 [ref. 27192], Moore et al. 2003:169 [ref. 27076], Kiraly et al. 2003:4 [ref. 28226], Nelson et al. 2004:50 [ref. 27807], Castro 2011:103 [ref. 31457], Straube et al. 2011:138 [ref. 31563], Page et al. 2013:53 [ref. 32708], Del Moral-Flores et al. 2016:140 [ref. 34398], Weigmann 2016:59 [ref. 34211], Compagno 2016:1187 [ref. 34544], Nión et al. 2016:21 [ref. 35565], Almeida & Biscoito 2019:103 [ref. 37302], Ehemann et al. 2019:[4] [ref. 36861], Blanco-Parra & Niño-Torres 2022:Correction, p. 2 [ref. 38986], Page et al. 2023:41 [ref. 40505], Fricke et al. 2024:79 [ref. 41622]). Current status: Valid as Etmopterus gracilispinis Krefft 1968. Etmopteridae. Distribution: Western Atlantic: New Brunswick (Canada) south to central Argentina, including Gulf of Mexico and Caribbean Sea; southeastern Atlantic, southwestern Indian Ocean: South Africa. IUCN (2020): Least Concern. Habitat: marine.