Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Callionymidae
Etymology: Synchiropus: Greek, syn, symphysis = grown together + Greek, cheir = hand + Greek, pous = foot (Ref. 45335). More on author: Herre.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 1 - 18 m (Ref. 9710), usually 1 - 18 m (Ref. 27115). Tropical
Western Pacific: Ryukyu Islands to Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref. 90102)
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. 120744)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 25 - 29.3, mean 28.6 (based on 1677 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00569 - 0.02786), b=2.99 (2.79 - 3.19), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±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) .