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).
Issue
This species is synonym of Pseudoscopelus obtusifrons (Fowler, 1934) in Eschmeyer (CofF ver. Jan. 2012: Ref. 89336).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 829 - 1770 m (Ref. 85782). Deep-water
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
North Atlantic: from off USA to France. Southwest Atlantic: Brazil (48º N to 20º S, 67º W to 4º W).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.8 cm SL male/unsexed; (Ref. 75979)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 18 - 22; Anal soft rays: 19 - 20. This species can be distinguished within the group by a set of characteristics: mesial series of premaxillary teeth in a single row, with 2-4 teeth (vs. medial series in 3-4 rows, with 20 or more teeth in P. scriptus, P. cephalus, P. sagamianus, and P. cordilluminatus); dentary teeth in 2 series, lateral and medial, each with a single row (vs. 2 series, lateral in single row and mesial with three or more rows); teeth at the anterior edge of premaxilla recurved, dentary inserted on the ventral edge of the bone and pointing mesially or caudally (vs. teeth at lateral series extremely curved with anterior teeth inserted in the lateral edge of bone, turned outwards) (Ref. 85782).
Meso- to bathypelagic; juveniles are known from 50 to 1025 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
Preferred temperature (Ref.
123201): 2.3 - 3.5, mean 2.7 °C (based on 13 cells).
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): 3.6 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
