| Family | Scientific Name | Author | Year | Common Name |
| Myctophidae | Gonichthys cocco | (Cocco) | 1829 | Linestop Lanternfish |
Gonichthys cocco
Unique Characteristics: Photophores always present; caudal peduncle with SCO and ICO, supracaudal and/or infracaudal luminous plates or patches, sometimes coalesced, or without caudal organs and luminous patches. VLO, SAO3 and uppermost Pol below or only slightly above lateral line, well below dorsal contour of body; 2 or more Prc, with Prc2 never far above lateral line. Two Prc, always separate from AO. PLO from less than its diameter above to well below level of upper end of pectoral-fin base. Mouth subterminal; snout conical and more or less protruding; PLO at or slightly above level of upper end of pectoral-fin base; AO series divided into AOa and AOp; Pol present; caudal peduncle markedly slender, its depth at least 2.5 or more times in its length. Gill rakers present. Lateral line incomplete, with last perforated scale below area of adipose-fin origin; anal-fin origin behind vertical through base of last dorsal-fin ray. Male SCO of 6-8 overlapping scale-like plates, and ICO absent; female SCO absent; and ICO of 3-6 patches. Scales usually present (FAO 2020).
Similar Species: None
References:
(FAO 2020) Sutton, T.T., P.A. Hulley, R. Wienerroither, D. Zaera-Perez, and J.R. Paxton. 2020. Identification guide to the mesopelagic fishes of the central and south east Atlantic Ocean. FAO Species Identification Guide for Fishery Purposes. Rome, FAO. 2020. https://doi.org/10.4060/cb0365en.