HomeFreshwater aquarium fishPuffers, gobies & brackish fishQueen of Siam goby Queen of Siam goby (Mugilogobius rambaiae) Scientific name: Mugilogobius rambaiae Smith, 1945 The Queen of Siam goby (Mugilogobius rambaiae) is a freshwater fish of the family Gobiidae. Native range: Asia, Sri Lanka, Myanmar, Thailand, Malaysia, Singapore, Indonesia and Papua New Guinea. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 7-8; Anal spines: 1; Anal soft rays: 7 - 9; Vertebrae: 26. Body greyish, scales with short vertical or curved dark lines, distinct brown oblique shoulder bar present. Longitudinal scales 23-28; TRB 8-12; predorsal scales 11-20, small, reaching up to behind eyes, one to several scales sometimes larger than others; scales on body mostly ctenoid; third to fourth dorsal fin spines longest. Caudal fin rounded to rectangular.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMugilogobius rambaiaeFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.2EnvironmentFreshwater; brackish; demersalClimateTropicalDistributionAsia: Sri Lanka, Myanmar, Thailand, Malaysia, Singapore, Indonesia and Papua New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: potentialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More puffers, gobies & brackish fishMalabar pufferfishCarinotetraodon travancoricusStigmatogobius sadanundioViolet gobyGobioides broussonnetiiNorthern trout gudgeonMogurnda mogurndaSpotted scatScatophagus argusPeacock gudgeonTateurndina ocellicaudaSee all puffers, gobies & brackish fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026