Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Cynoglossidae
(Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335); bathyspilus: From the Greek bathy meaning deep, in reference to deepwater habitat, and spilos, meaning spot, in reference to the numerous, small, reddish speckles on the blind-side body (Ref. 51120).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 248 - 500 m (Ref. 51120), usually 335 - 431 m (Ref. 51120). Deep-water
Western Central Pacific: Philippines and southern Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.1 cm SL male/unsexed; (Ref. 51120)
Morphology | Morphometrics
soft rays: 78 - 87;
Vertebrae: 50 - 54. Characterized by the combination of a predominant 1-2-2 pattern of interdigitation of dorsal pterygiophores and neural spines; 14 caudal-fin rays; 91-100 dorsal-fin rays; 78-87 anal-fin rays; 50-54 vertebrae, a pointed snout, black peritoneum, and distinctive features of its ocular- and blind-side coloration (in alcohol) including ocular-side background coloration uniformly bright (freshly captured) to darker reddish-brown with some specimens having a series of faint, reddish-brown, incomplete crossbands; outer surface of ocular-side opercle yellowish with reddish-brown speckles; dorsal and anal fins darker reddish-brown anteriorly, fading to a pale reddish posteriorly; blind side uniformly yellowish to straw-colored, except proximal pterygiophore regions of dorsal and anal fins with dense covering of reddish-brown speckles; both sides of dorsal, anal, and pelvic fins covered with dense concentrations of small red speckles; speckling especially dense on blind-side body in region around anus and also on both sides of pelvic fin (Ref. 51120).
Appears to feed on small fishes and crustaceans (Ref. 51120).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Krabbenhoft, T.J. and T.A. Munroe, 2003. Symphurus bathyspilus: a new cynoglossid flatfish (Pleuronectiformes: Cynoglossidae) from deepwaters of the Indo-West Pacific. Copeia 2003(4):810-817. (Ref. 51120)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 6.9 - 13.5, mean 9.8 °C (based on 121 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00592 - 0.02556), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153
): Low vulnerability (15 of 100) .