Actinopteri (ray-finned fishes) > Aulopiformes
(Grinners) > Synodontidae
(Lizardfishes) > Synodontinae
Etymology: Synodus: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335); rubromarmoratus: rubromarmoratus (adjective) in reference to the characteristic red marbled coloration of the living fish.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 5 - 50 m (Ref. 86942). Tropical; 26°N - 25°S
Indo-West Pacific: Maldives (Ref. 30829) and the western Pacific.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 48635)
soft rays: 8 - 10. Cheek behind mouth fully scaled; anterior palatine teeth not longer than more posterior teeth, and not in discrete group; nasal flap long and blunt-tipped. Large scales (3.5 rows above lateral line) and bright red bars are distinctive (Ref. 37816).
Found coastal reefs to outer reefs, usually on deep slopes in depths over 20 m on sand and rubble bottoms (Ref. 30829, 48635). This sedentary fish was seen in 206 to 341 m outside the caves (Ref. 58472). Benthic at 1-26 m (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.8 - 29, mean 27.8 °C (based on 686 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00219 - 0.00954), b=3.16 (2.99 - 3.33), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.7 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.).
Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .