Specimens examined:4 (SL 68.5〜74.5 mm). Depth:390〜530 m.
Counts:D 13; A 18; P1 17〜18; GR 6+1+15〜16; SLL 37〜38. PO 5; VO 4; AO 7〜8+3〜4=11; Pol 1; Prc 2.
本属は13種を含み,その内の5種が大西洋熱帯水帯から知られている。*印はHulley (1981) とNafpaktitis et al. (1977) より引用。(藤井)
Distinctive characters:
(Genus):Base of anal fin much longer than that of dorsal fin. Two Prc. PLO above level of upper end of base of pectoral fin. One Pol. Four VO on a horizontal line. SAO1 posterior to VO3. Gill rakers well developed. (Species):SAO in a slightly curved line. Upper half of posterior margin of opercle serrated. Scales cycloid. Pectoral rays 16〜20*. Gill rakers 6〜7+1+15〜17, total 22〜26*. AO photophores 6〜8+2〜5, total 9〜12*.
Distribution:
Tropical waters of Atlantic, Pacific, and Indian oceans. Type locality-western North Atlantic.
Remarks:
The genus includes 13 species, 5 of which are known from the tropical waters of the Atlantic Ocean. * Reference data from Hulley (1981) and Nafpaktitis et al. (1977). (Fujii)