Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Scombriformes (Mackerels) >
Chiasmodontidae (Snaketooth fishes)
Etymology: Pseudoscopelus: Greek, pseudes = false + Greek, skopelos = a lantern fish (Ref. 45335). Lütken did not recognize the presence of photophores on the body, confusing them with pores, but referred to a genus of lanternfish (Scopelus now Myctophum) when he named the genus (Ref. 85782); odontoglossus: Name from the Greek ‘odont-‘, meaning tooth, and ‘glosso’, for tongue; referring to the presence of well developed teeth on the bones of the tongue, basihyal and first ceratobranchial.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 325 - 2700 m (Ref. 85782). Deep-water; 28°N - 24°S, 154°W - 139°E (Ref. 85782)
Pacific Plate.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm SL male/unsexed; (Ref. 85782)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 21 - 24; Anal soft rays: 21 - 24; Vertebrae: 37. This species of the Pseudoscopelus astronesthidens species group is distinguished within the group by a unique characteristic: teeth on basihyal and second basibranchial in 3 rows, 28-40 (vs. 2 rows, basihyal teeth 15-25). It is further distinguished from P. australis by the presence of rakers on first ceratobranchial (vs. none), palatine teeth in 2 rows, total teeth 16-26 (vs. single row, 10-16), and posteropreopercular photophores present (vs. absent), and precaudal-fin photophores U-shaped (vs. three pronged) (Ref. 85782).
Meso- to bathypelagic; from 325 to 2700 m (mean 1631 m) (Ref. 85782).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Melo, M.R.S., 2010. A revision of the genus Pseudoscopelus Lütken (Chiasmodontidae: Acanthomorphata) with descriptions of three new species. Zootaxa 2710:1-78. (Ref. 85782)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
