Lampanyctus tenuiformis
No common name
Collection Details
Specimens
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Myctophiformes (Lanternfishes)
Myctophidae (Lanternfishes)
Lampanyctus
Lampanyctus tenuiformis
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, with a very large mouth and an anal fin base longer than dorsal fin base. Snout is acute. Jaws extend slightly less than twice eye diameter beyond posterior margin of orbit, and maxilla is slightly expanded posteriorly. Posterior margin of operculum is concave dorsally and convex ventrally. Gill rakers number 14. Dorsal fin originates posterior to pelvic fin base and has 13 or 14 rays. Pectoral fin extends to origin of anal fin and has 13 rays. Anal fin originates under posterior one-third of dorsal fin base and has 17 or 18 rays. Vn is small. PVO is above and anterior to PVOi. PLO is 1.5 to 2.5 times its diameter below lateral line. Five PO are present, with PO4 highly elevated and behind PO3. VLO is closer to lateral line than to pelvic fin base. Four VO are present. SAO form obtuse angle, with SAOx over or slightly anterior to VO3, and SAO3 over or anterior to anal fin origin and in contact with lateral line. Two Pol are nearly in straight line with last AOa, and P0I2 is within its diameter of lateral line. AOa number six or seven, and AOp number six or seven, with first behind, but occasionally over, anal fin base. Four Prc are continuous with AOp series, with first three forming arc, and last on level with lateral line.
Distribution
Gulf of Mexico and the Caribbean Sea
Gulf of Mexico
Habitat Associations
Tropical waters worldwide; daytime depths range from 300 to 750 m, and nighttime depths range from 40 to 325 m
Biology
122 mm SL
Mesopelagic (Ref. 58302). High-oceanic, found between 300-700 m during the day and between 40-325 m at night with maximum abundance at 100 m. Sexually mature from about 12.3-13.8 cm (near Hawaii) (Ref. 4479). Oviparous, with planktonic eggs and larvae (Ref. 31442).
IUCN Red List Status: Least Concern (LC), assessed 2012-07-10. Resilience: Medium (Preliminary K or Fecundity.).
References
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.
Uyeno, T., K. Matsuura and E. Fujii (eds.) (1983) Fishes trawled off Suriname and French Guiana. Japan Marine Fishery Resource Research Center, Tokyo, Japan. 519 p.
Shinohara, G., H. Endo and K. Matsuura (1996) Deep-water fishes collected from the Pacific Coast of Northern Honshu, Japan. Mem. Natn. Sci. Mus., Tokyo (29):153-185.
Wang, J.T.-M. and C.-T. Chen (2001) A review of lanternfishes (Families: Myctophidae and Neoscopelidae) and their distributions around Taiwan and the Tungsha islands with notes on seventeen new records. Zool. Stud. 40(2):103-126.
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