Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Argentiniformes (Marine smelts) >
Opisthoproctidae (Barreleyes or spookfishes)
Etymology: Bathylychnops: Greek, bathys = deep + Greek, lychnos = lamp + Greek, ops = appearance (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic. Temperate; 33°S - 34°S, 72°W - 75°W
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Pacific Ocean: presently known only from the southeastern Pacific and possibly belongs to the fauna of temperate waters of the southern hemisphere (84273).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 84273)
Short description
Identification keys | Morphology | Morphometrics
Eyes are vesicular, with an additional lens directed anteriorly; ventral fins are at the beginning of the last one third of the body, noticeably in front of the vertical of dorsal fin origin; anal opening and anal fin origin are behind the vertical of the end of dorsal fin; adipose fin is present and located near the vertical of the end of the anal fin; myomeres number 77–82; fry have 4–5 pigmental spots on the back and 3–4 paired peritoneal spots; pigmental spots present near upper margin of gill opening, at insertions of ventral fins near the end of the intestine, above the anal fin insertion, and under the adipose fin; gill rakers number 29–34.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Parin, N.V., Belyanina, T.N. and S.A. Evseenko, 2009. Materials to the revision of the genus Dolichopteryx and closely related taxa (Ioichthys, Bathylychnops) with the separation of a new genus Dolichopteroides and description of three new species (Fam. Opisthoproctidae). J. Ichthyol. 49(10):839-851. (Ref. 84273)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00170 - 0.01121), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
