Elasmobranchii (sharks and rays) > Rajiformes
(Skates and rays) > Rajidae
Etymology: falloargus: Name from Latin 'fallo' meaning false or deceive and 'argus' for Argus, a mythical hundred-eyed guardian; refers to the vague, eye-like marking on the middle of each pectoral fin..
More on author: Last.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 60 - 256 m (Ref. 75648). Tropical; 10°S - 22°S, 111°E - 130°E (Ref. 114953)
Eastern Indian Ocean: off north-western Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm TL male/unsexed; (Ref. 75648); 49.1 cm TL (female)
Inhabits outer continental shelf and upper slope (Ref. 114953). Lengths of adolescent males varied from 32.5-37.5 cm TL, with smallest juvenile at 21.9 cm TL (Ref. 75648).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Last, P.R., 2008. New short-snout members of the skate genus Dipturus (Rajoidei: Rajidae) from Australian seas. pp. 53-98. In Last, P.R., W.T. White, J.J. Pogonoski and D.C. Gledhill (eds.): Descriptions of new Australian skates (Batoidea: Rajoidei) pg. 53-98. CSIRO marine and atmospheric research paper no. 021. (Ref. 75648)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 15.2 - 25.3, mean 22.1 °C (based on 36 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00142 - 0.00642), b=3.23 (3.06 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.1 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (39 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .