HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesSlender spongegoby Slender spongegoby (Phyllogobius platycephalops) Scientific name: Phyllogobius platycephalops Smith, 1964 The Slender spongegoby (Phyllogobius platycephalops) is a marine fish of the family Gobiidae. Native range: Western Indian Ocean, Mozambique. Western Central Pacific: Indonesia, Philippines, Solomon Islands, and the Great Barrier Reef. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 7-8; Anal spines: 1; Anal soft rays: 8. Translucent, very finely dotted with red or black; two indistinct longitudinal rows of reddish dashes on back and one along lateral line; red line from upper lip to eye; a U-shaped reddish mark on each side of occiput behind eye. Caudal fin rounded.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePhyllogobius platycephalopsFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Indian Ocean: Mozambique. Western Central Pacific: Indonesia, Philippines, Solomon Islands, and the Great Barrier Reef.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