Actinopteri (ray-finned fishes) > Callionymiformes
(Dragonets) > Callionymidae
Etymology: Synchiropus: Greek, syn, symphysis = grown together + Greek, cheir = hand + Greek, pous = foot (Ref. 45335).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 12 - 122 m (Ref. 58302), usually 15 - 16 m (Ref. 11666). Subtropical
Pacific Ocean: Japan, New Caledonia, and Hawaii. Recently reported from Tonga (Ref. 53797).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.7 cm SL male/unsexed; (Ref. 11666); 4.0 cm SL (female)
soft rays: 8. Dorsoposterior edge of eye with a pair of supraorbital cirri. Long, somewhat pointed snout. Male with first dorsal fin high and elongate; and with an inverse Y-shaped, blackish brown blotch on the throat. The female with a large dark mark at the base of its pelvic fin (Ref. 37433).
Found on mixed volcanic and coral sand, broken shells, and rubble substrate, with low relief and no algal cover (rarely on pure sand) (Ref. 11666). Benthic (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fricke, R. and M.Z. Brownell, 1993. Two new dragonets of the genus Callionymus (Callionymidae) and a record of Callionymus corallinus from Miyake-jima, Izu Islands, Japan. Jap. J. Ichthyol. 40(1):1-10. (Ref. 11666)
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
): 23.7 - 27.8, mean 25.8 °C (based on 490 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00441 - 0.02856), b=2.92 (2.70 - 3.14), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 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) .