HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesLadder pipefish Ladder pipefish (Festucalex scalaris) Scientific name: Festucalex scalaris G?nther, 1870 The Ladder pipefish (Festucalex scalaris) is a marine fish of the family Syngnathidae. Native range: Eastern Indian Ocean, endemic to Australia. BiologyMost specimens are from trawls but one collection taken from a pond; some taken among weed and algae. Ovoviviparous. The male carries the eggs in a brood pouch which is found under the tail. Males may be brooding at 12 cm SL.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameFestucalex scalarisFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length18.0EnvironmentMarine; demersalClimateSubtropicalDistributionEastern Indian Ocean: endemic to Australia.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