Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Uranoscopidae
Etymology: Uranoscopus: Greek, ouranos = sky + Greek skopein = to watch (Ref. 45335). More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 5 - 350 m (Ref. 86942). Tropical
Indo-Pacific: Red Sea, Indonesia, Fiji, Samoa, and Tonga. Recently recorded from Reunion (Ref. 53568).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm TL male/unsexed; (Ref. 48636)
spines: 13. Recognized by the black first dorsal fin (Ref. 48636). Body with distinctive black spots. Respiratory valve inside lower jaw with a thread-like brownish appendage and several long filaments around is base. Upper edge of opercle ascending backward. Posterior nostril a slit-like pore or with a very low tubular valve. First dorsal fin with V spines (last one rudimentary). Only 1 basipterygial process. No cirrus on eye (Ref 42788).
Inhabits reef flats and coastal bottoms (Ref. 9710) but is rarely seen because it lies buried in sand or mud most of the time, with only the eyes showing. When buried, the cirri on the edge of the mouth serve to keep out the sand during respiration. The oral lure is used to attract the prey within striking range of the mouth. The shoulder has a venomous cleithral spine; wounds can be serious.
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. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 26.9 - 28.1, mean 27.4 (based on 56 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00174 - 0.01147), b=3.14 (2.92 - 3.36), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.1 ±0.70 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .