HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesWalea pygmy seahorse Walea pygmy seahorse (Hippocampus waleananus) Scientific name: Hippocampus waleananus Gomon & Kuiter, 2009 The Walea pygmy seahorse (Hippocampus waleananus) is a marine fish of the family Syngnathidae. Native range: Asia, Indonesia. Known only from the Togean Islands in Tomini Bay, central Sulawesi. BiologyExtremely small (height 16.8mm, standard length 17.8mm); 12 trunks rings; tail elongate with 32 tail rings; 12 dorsal fin rays; 9 pectoral fin rays; anal fin absent (at least in one sex); eggs apparently brooded within trunk; medium length snout that lacks a bulbous tip; raised, angular coronet; fused gill openings on midline behind coronet supported by raised cleithral girdle; enlarged knob-like structures on head and trunk; paired laterally directed knob-like structures each with short fleshy filament on superior trunk ridge of the fifth trunk ring; last 28 tail rings each with small paired knobs on inferior tail ridge, fifth, ninth and twelfth tail rings with bilaterally paired enlarged knob-like structures on superior tail ridges; pale pinkish to yellowish with red to brown blotches, radiating bands from eye; body protuberances white, appearing as white spots.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHippocampus waleananusFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length1.8EnvironmentMarine; benthopelagic, usually 5 - 20 mClimateTropicalDistributionAsia: Indonesia. Known only from the Togean Islands in Tomini Bay, central Sulawesi.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries:ResilienceHigh, 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