Actinopterygii (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Cynoglossidae
(Tonguefishes) > Cynoglossinae
Etymology: Cynoglossus: Greek, kyon = dog + Greek, odous = teeth + Greek, glossa = tongue (Ref. 45335).
Environment / Climate / Range
Marine; demersal; depth range 20 - 85 m (Ref. 11230). Deep-water, preferred ?
Indo-West Pacific: South China Sea (Amoy, Canton, Kowloon, Hong Kong and Shanton) through Taiwan, Shanghai, Tunghai and Pohai to Korea and Japan. Known from Shizuoka Prefecture to the South China Sea (Ref. 559). Also found in Indonesia (Ref. 5978).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm SL male/unsexed; (Ref. 559)
Body comparatively deep (23 to 28% SL). Maxilla extending only to point equal with verticals through middle and posterior margin of fixed eye. Corner of mouth nearer to tip of snout than to branchial opening (Ref 9895).
Found in the sublittoral zone incl. semi-enclosed sea areas; inhabits muddy and sandy bottoms of the continental shelf and feeds mainly on benthic invertebrates (Ref. 2107, 11230).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Menon, A.G.K., 1977. A systematic monograph of the tongue soles of the genus Cynoglossus Hamilton-Buchanan (Pisces: Cynoglossidae). Smithson. Contrib. Zool. (238):1-129. (Ref. 5297)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00286 - 0.01754), b=3.08 (2.87 - 3.29), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.37 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4-5).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (49 of 100) .