HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesWeber's mudskipper Weber's mudskipper (Periophthalmus weberi) Scientific name: Periophthalmus weberi Eggert, 1935 The Weber's mudskipper (Periophthalmus weberi) is a brackish-water fish of the family Gobiidae. BiologyDorsal spines (total): 5 - 17; Dorsal soft rays (total): 10-13; Anal spines: 1; Anal soft rays: 8 - 11Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePeriophthalmus weberiFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0EnvironmentBrackish; demersal; amphidromousClimateTropicalDistributionWestern Pacific: restricted to Irian Jaya (Indonesia), Papua New Guinea and northern Australia. Records from the Ganges Delta in the Indian region probably refer to Periophthalmodon septemradiatus.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