Actinopteri (ray-finned fishes) > Acropomatiformes
(Oceanic basses) > Symphysanodontidae
Etymology: Symphysanodon: Greek, syn, symphysis = grown together + Greek, physis = growth body form + Greek, odous = teeth; related to few teeth which are located over the area where the two jaws meet (Ref. 45335); mona: Named mona for its type locality (Mona Passage); feminine, noun in apposition to Symphysanodon.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic; depth range - 384 m (Ref. 54833), usually - m (Ref. ). Tropical; 0°C -
Western Central Atlantic: known only from the type locality: Mona Passage off the west coast of Puerto Rico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.6 cm SL male/unsexed; (Ref. 54833)
Morphology | Morphometrics
soft rays: 7;
Vertebrae: 25. The species differs from all other species of the genus in having fewer gillrakers on first arch (4 or 5 + 19-21 = 24 or 25 total vs. 8-14 + 20-29 = 28-42 total). In addition, it differs from other Atlantic species in having a ventral branch of obliquus dorsalis 3 muscle (vs. its absence in the other two species) and in having a posteriorly projecting extension of the cartilaginous lateral end of ceratobranchial 4 (vs. its absence in the other two species; S. berryi has a small accessory cartilage associated with the lateral end of ceratobranchial 4; the specimen of S. octoactinus examined may have had a very small accessory cartilage that was lost during dissection).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Anderson, W.D. and V.G. Springer, 2005. Review of the perciform fish genus Symphysanodon Bleeker (Symphysanodontidae), with description of three new species, S. mona, S. parini, and S. rhax. Zootaxa 996:1-44. (Ref. 54833)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5004 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00155 - 0.01070), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.5 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .