Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Terapontidae
(Grunters or tigerperches)
Etymology: Syncomistes: Greek, syn, symphysis = grown together + Greek, komistes, -ou = leader, driver (Ref. 45335); holsworthi: Named for Bill Holsworth whose foundation financed the expedition on which this species was discovered, as well as providing ongoing support for doctoral research into the ecology, management and natural history of Australian wildlife.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical; ? - 36°C (Ref. 119336)
Oceania: Ord, Penticost, and Durack rivers in Western Australia, and Victoria River in Northern Territory, Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 26.0 cm SL male/unsexed; (Ref. 119336)
Morphology | Morphometrics
Adults prefer to inhabit deeper and slow flowing areas of creeks and rivers, as well as still waters and billabongs while juveniles occur in shallow, still waters or occasionally in riffle habitat. Usually forms shoals in the middle of the water column around snags, sometimes with Syncomistes bonapartensis. Feeds mainly on filamentous algae that are scraped off rocks with specially modified teeth. Attains sexual maturity at 9.0-10.0 cm. Spawns during the wet season and appears to wait until a major flood event to spawn. Produces non-adhesive eggs that are large, about 3 mm (Ref. 119336).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Shelley, J.J, A. Delaval and M.C. Le Feuvre, 2017. A revision of the grunter genus Syncomistes (Teleostei, Terapontidae, Syncomistes) with descriptions of seven new species from the Kimberley region, northwestern Australia. Zootaxa 4367(1):1-103. (Ref. 119336)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00624 - 0.03055), b=3.02 (2.83 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (33 of 100) .