Actinopteri (ray-finned fishes) > Myctophiformes
(Lanternfishes) > Myctophidae
(Lanternfishes) > Diaphinae
Etymology: Diaphus: Greek, dis, dia = through + Greek, physa, phyo = to beget, to have as offspring (Ref. 45335); trachops: From the uneven surface of the lower orbital margin ['trachops' = rough; ''ops' = eye].
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 100 - 686 m (Ref. 7454). Deep-water
Eastern Central Pacific: Hawaii. A single male paratype was taken about 8 miles west-northwest of Pt. Pinos, Monterey Co., California which may be regarded as stray.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL male/unsexed; (Ref. 7454)
Morphology | Morphometrics
soft rays: 14 - 16;
Vertebrae: 34 - 35. Surface of lower orbital margin uneven, caused by the small domed intrusions of pigmented tissue covering the minute, probably luminous, dots anterior to Vn
Meso- and benthopelagic at 95-225 m at night, 425-600 m during day (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Wisner, R.L., 1974. Descriptions of five new species of myctophid fishes from the Pacific, Indian, and Atlantic Oceans. Occas. Pap. Cal. Acad. Sci. 110:1-37. (Ref. 7454)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 10.1 - 15.2, mean 12.1 °C (based on 11 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00207 - 0.01160), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.16 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (27 of 100) .