HomeFish encyclopediaRay-finned fishesPerch-like fishDragonetsLadd's dragonet Ladd's dragonet (Synchiropus laddi) Scientific name: Synchiropus laddi Schultz, 1960 The Ladd's dragonet (Synchiropus laddi) is a marine fish of the family Callionymidae. Native range: Pacific Ocean, Philippines, Palau, Marshall Islands, and Tuamoto Islands. Reported from Rotuma, Fiji and Tonga. BiologyDorsal spines (total): 4; Dorsal soft rays (total): 9; Anal spines: 0; Anal soft rays: 8. Preopercular spine 0[2/0]1.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSynchiropus laddiFamilyCallionymidae (Dragonets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length3.0Depth range15 m (49 ft)EnvironmentMarine; reef-associated; depth range ? - 15 mClimateTropicalDistributionPacific Ocean: Philippines, Palau, Marshall Islands, and Tuamoto Islands. Reported from Rotuma, Fiji and Tonga.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026