Teleostei (teleosts) >
Pleuronectiformes (Flatfishes) >
Cynoglossidae (Tonguefishes) > Cynoglossinae
Etymology: Cynoglossus: Greek, kyon = dog + Greek, odous = teeth + Greek, glossa = tongue (Ref. 45335); yokomaru: Named for research vessel Yoko-maru of the Seikai National Fisheries Research Institute, Fisheries Research Agency, from which almost all the types were collected; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 20 - 157 m (Ref. 126070), usually ? - 110 m (Ref. 126070). Temperate
Western Pacific: East China Sea and Yellow Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.6 cm SL male/unsexed; (Ref. 126070)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 115 - 119; Anal soft rays: 90 - 94; Vertebrae: 56 - 57. This species is distinguished by the following set of characters: lateral lines 2, dorsolateral and midlateral on ocular side and none on the blind side; both sides with ctenoid scales; nostrils on ocular side 2, the posterior nostril immediately anterior to a point between eyes; head length shorter than its depth; posterior margin of ocular-side upper jaw do not reach below posterior rim of lower eye; body depth 25.8-30.2% SL; upper supraorbital length 35.5-47.3% HL; lower supraorbital length 48.8-64.3% HL; horizontal diameter of lower eye 10.1-17.4% HL; dorsolateral line long (DLL) and continuous with 61-70 scales; midlateral line (MLL) with 4-5 + 65-68 = 69-73 scales; scales above DLL 3-4; DLL-MLL with 10-12 scales; cephalodorsal line (CDL) 8 scales; D 115-119; A 90-94; caudal-fn rays 10 (rarely 8 or 9) and vertebrae 9 + 47-48 = 56-57 (Ref. 126070).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Naito, T. and H. Endo, 2019. A new tongue sole of the genus Cynoglossus from the East China Sea and Yellow Sea (Pleuronectiformes: Cynoglossidae). Ichthyol. Res. 66(3):400-410. (Ref. 126070)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00432 - 0.02536), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.4 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 (18 of 100).