Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Cyclopsettidae
Etymology: Citharichthys: Latin, cithara = lire like instrument + Greek, ichthys = fish (Ref. 45335); gnathus: From the Greek gnathos meaning lower jaw, on which the bony knob characterizes this species.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range ? - 95 m (Ref. 35997). Tropical
Southeast Pacific: known only from the Galapagos Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.2 cm SL male/unsexed; (Ref. 35997)
Morphology | Morphometrics
soft rays: 62 - 68;
Vertebrae: 36 - 37. Lower jaw in adults with a remarkable bony knob; snout very strongly projecting, 5.5-6.3% in SL in adults; pectoral fin on ocular side longer than that on blind side, ocular side with 10-11 rays, blind side with 8-10 rays; pelvic fin on ocular side situated on mid-ventral line, that on blind side slightly in advance of and dorsal to its counterpart (Ref. 35997).
Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
Hoshino, K. and K. Amaoka, 1999. Citharichthys gnathus, a new species of paralichthyid flounder (Teleostei: Pleuronectiformes) from the Galapagos Islands, eastern Pacific Ocean. Ichthyol. Res. 46(4):371-375. (Ref. 35997)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00335 - 0.01717), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 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.).
Vulnerability (Ref. 59153
): Low vulnerability (15 of 100) .