Actinopteri (ray-finned fishes) > Perciformes/Zoarcoidei
(Eelpouts and pricklebacks) > Zoarcidae
(Eelpouts) > Lycodinae
Etymology: Argentinolycus: Named for Argentina, where the species is known mainly from the Argentine Patagonia, and the Greek 'lykos' (= wolf), a commonly used suffix for southern hemisphere zoarcid genera..
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 40 m (Ref. 11954). Temperate
Southwest Atlantic: Puerto Madryn, Argentina to Tierra del Fuego in the south.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.7 cm SL male/unsexed; (Ref. 11954)
Morphology | Morphometrics
This species is distinguished by the following characters: elongated and depressed neurocranium; parasphenoid wing is broad and without dorsal ramus projecting above ventral base of trigeminofacialis foramen; articulating frontal and parasphenoid; enlarged pterosphenoid; intercalar very small and set posteriorly; separate frontal bones, the frontal corner tapering; parietals meet in dorsal mid-line; small supraoccipital, with exoccipital narrowly articulating posteriorly; sphenotic excluded from parietal by frontal and pterotic; posterior ramus of hyomandibula is elongated; well developed palatopterygoid series; ectopterygoid overlap both anterior and dorsal surface of quadrate; ceratohyal-epihyal juncture with bone interdigitating along its entire length; 6 branchiostegal rays; 7-8 suborbital bones, its canal with 6 pores; no posttemporal ventral ramus; scapular foramen enclosed, scapula with well developed posterior strut; postcleithrum present; vertebrae asymmetrical, 22-24+62-69 = 84-90; well developed oral valve; gill slit extending ventrally to slightly below lower end of pectoral-fin base; absence of interorbital or occipital pores and commissure across parietals; suborbital pores along ventral ramus (6+0); nasal pores 2; only postorbital pore 4; lateral line mediolateral complete; no pyloric caeca; pelvic-fin membranes excised at tip; presence of scales, palatine and vomerine teeth (Ref. 90127).
Inhabits the intertidal zone to about 40 m (Ref. 11954).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Anderson, M.E., 1994. Systematics and osteology of the Zoarcidae (Teleostei: Perciformes). Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. 60:120 p. (Ref. 11954)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00126 - 0.00549), b=3.21 (3.02 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (35 of 100) .