Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Beryciformes
(Sawbellies) > Melamphaidae
(Bigscale fishes or ridgeheads)
Etymology: Melamphaes: Greek, melan, -anos = black + Greek, amphi = both side (Ref. 45335); contradictorius: Name from Latin 'contradictorius' meaning contradictory, stresses the close relation of characters of this species to other species in the M. longivelis complex..
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range ? - 200 m (Ref. 117111). Subtropical
Western Pacific: at the boundary between the Tasman Sea and Fiji Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.1 cm SL male/unsexed; (Ref. 117111)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 28 - 29. This species is distinguished by the following characters: first gill arch with 18 rakers; eye diameter greater than width of suborbital bone; caudal peduncle depth more than twice its length; vertebrae 28-29, of them trunk 13; haemal arch of first caudal vertebra without spurs; D III,15; A I,8; ventral-fin soft rays 7; ventral fin is usually beyond vertical of posterior margin of pectoral fin insertion; anal fin begins beyond the vertical of last ray of dorsal fin (Ref. 117111).
Gonadal maturity stage II-III for of 3.1 cm SL male (Ref. 117111).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kotlyar, A.N., 2015. Revision of the genus Melamphaes (Melamphaidae). 3. Oligo-raker species: M. proximus sp. n., M. contradictorius sp. n., and M. succedanaus sp. n. J. Ichthyol. 55(5):619-629 (Ref. 117111)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00402 - 0.02488), b=3.05 (2.83 - 3.27), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.2 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.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .