Actinopterygii (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Cynoglossidae
(Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335). More on authors: Goode & Bean.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 239 - 810 m (Ref. 26268), usually 400 - 600 m (Ref. 26268). Deep-water; 41°N - 25°N
Western Atlantic: New York to Florida in USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 6 - 6.5 cm
Max length : 10.0 cm TL male/unsexed; (Ref. 7251)
Morphology | Morphometrics
A species rarely collected; captured on soft mud substrates. Little is known about its biology (Ref. 26268).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Munroe, T.A., 1998. Systematics and ecology of tonguefishes of the genus Symphurus (Cynoglossidae: Pleuronectiformes) from the western Atlantic Ocean. Fish. Bull. 96(1):1-182. (Ref. 26268)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 8.5 - 15.1, mean 12.2 (based on 26 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00296 - 0.01410), b=3.12 (2.93 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (11 of 100) .