Diaphus luetkeni
No common name
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Myctophiformes (Lanternfishes)
Myctophidae (Lanternfishes)
Diaphus
Diaphus luetkeni
Description
This species account was compiled from
Composite (multiple sources) (McEachran, J.D. and J.D. Fechhelm. Fishes of the Gulf of Mexico. University of Texas Press, Austin.)
and processed using AI-assisted text extraction.
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Characters
Moderately slender and compressed; large mouth; dorsal fin base slightly longer than anal fin base; snout blunt; jaws extend 1.2 to 1.5 times eye diameter beyond posterior orbital margin; maxilla not expanded posteriorly; head 31.5% to 34% of SL; posterior opercular margin tapers to acute angle just above PLO; gill rakers number 20 to 23; dorsal fin originates over or slightly posterior to pelvic fin base with 15 to 17 rays; pectoral fin reaches slightly beyond PO with 11 rays; anal fin originates anterior to end of dorsal fin base with 14 to 16 rays; Dn oblong, about one-third size of nasal rosette, directed forward, and located dorsal to nasal rosette; Vn extends along ventral margin of orbit with three to five projections along its dorsal border; PVO1, PVO2, and ?O1 in straight line; PLO closer to pectoral fin base than to lateral line; five PO present, with PO4 elevated; VLO slightly closer to lateral line than to pelvic fin base; five VO present, with VO1, VO2, and VO3 progressively elevated; SAO form straight to nearly straight line, with SAO3 posterior to and on same level as VO5, and SAO1 over or slightly anterior to anal fin base and about its diameter below lateral line; Pol about its diameter below lateral line; AOa number five to seven, with first and last elevated; AOp number four to six, with AOp1 usually over anal fin base; four Prc form gentle curve, with Prc4 1.5 times its diameter below lateral line; small luminous scale located at PLO
Distribution
Massachusetts to northern Brazil, including the Gulf of Mexico and the Caribbean Sea
Gulf of Mexico
Habitat Associations
Tropical waters; daytime depths range from 375 to 750 m, and nighttime depths range from 40 to 325 m
Biology
Maximum known size is 60 mm SL
Maturity is reached at about 42 to 45 mm SL
Oceanic species (Ref. 4066). Found between 375-750 m during the day and between 40-325 m at night (Ref. 4479).
IUCN Red List Status: Least Concern (LC), assessed 2015-02-27. Resilience: High (Preliminary K or Fecundity.).
References
Nafpaktitis 1968
Nafpaktitis et al. 1977
Hulley 1986b
Gartner et al. 1987
Hulley, P.A. (1986) Myctophidae. p. 282-321. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.
Hulley, P.A. (1990) Myctophidae. p. 398-467. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI; Paris; and UNESCO, Paris. Vol. 1.
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