Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Callionymidae
Etymology: Synchiropus: Greek, syn, symphysis = grown together + Greek, cheir = hand + Greek, pous = foot (Ref. 45335).
Environment / Climate / Range
Marine; reef-associated; depth range 1 - 18 m (Ref. 9710), usually 1 - 18 m (Ref. 27115). Tropical; 24°C - 26°C (Ref. 27115)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref. 90102)
Western Pacific: Ryukyu Islands to Australia.
Inhabits shallow protected lagoons and inshore reefs (Ref. 1602, 48636). Found on silty bottoms with coral and rubble (Ref. 9710). Usually in small groups spread over small area (Ref. 48636). Minimum depth reported from Ref. 27115. Has been reared in captivity (Ref. 35413). Well-known aquarium fish. (Ref. 37816).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pairs ascend in close contact towards the surface where eggs and sperm are released (aquarium observation, Ref. 36808).
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. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.00601 - 0.02891), b=3.00 (2.80 - 3.20), based on LWR estimates for species & Family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (11 of 100) .