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Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Cyclopsettidae (Sand whiffs)
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 Ecology

Marine; demersal; depth range ? - 95 m (Ref. 35997). Tropical

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Southeast Pacific: known only from the Galapagos Islands.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.2 cm SL male/unsexed; (Ref. 35997)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 78 - 86; Anal 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).

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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. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 24 May 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00317 - 0.01581), b=3.18 (3.00 - 3.36), 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.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Citharichthys gnathus Hoshino & Amaoka, 1999