Diogenichthys atlanticus

Diogenichthys atlanticus, Longfin Lanternfish. Source: FAO 2020.
Diogenichthys atlanticus, Longfin Lanternfish. Source: FAO 2020.
FamilyScientific NameAuthorYearCommon Name
MyctophidaeDiogenichthys atlanticus(Taning)1928Longfin Lanternfish

Diogenichthys atlanticus

Unique Characteristics: Two Prc photophores. No photophores above lateral line. AO divided into 2 groups, AOa and AOp; Pol present. Mouth terminal, snout not projecting; jaws short, extending less than 1/2 eye diameter behind orbit. PVO1-2 in a horizontal line; VO2 elevated. Prc2 low, level with Prc1. Outer dentary teeth flattened and hooked forward. Dn sexually dimorphic, better developed in males than females; male SCO single, extending about 50-75% of distance adipose-base to procurrent caudal rays, and ICO absent; female SCO absent, and ICO of 2-4 coalesced patches (FAO 2002; FAO 2020).

Similar Species: None

References:

(FAO 2002). The living marine resources of the Western Central Atlantic. Volumes 1-3. K.E. Carpenter (ed.). Food and Agriculture Organization of the United Nations, Rome, Italy. 4099p. (Available at: http://www.fao.org/3/y4160e/y4160e00.htm).

(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.