HomeFish encyclopediaRay-finned fishesPipefishes and SeahorsesPipefishes and seahorsesChocolate pipefish Chocolate pipefish (Syngnathus euchrous) Scientific name: Syngnathus euchrous Fritzsche, 1980 The Chocolate pipefish (Syngnathus euchrous) is a marine fish of the family Syngnathidae. Native range: Eastern Pacific, Redondo Beach in southern California, USA to central Baja California, Mexico. BiologyFound in eelgrass beds and in drifting algae, and off rocky shores. Some specimens have been captured by dipnet under a light at night. Ovoviviparous. The male carries the eggs in a brood pouch which is found under the tail. Minimum depth from.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSyngnathus euchrousFamilySyngnathidae (Pipefishes and seahorses)OrderSyngnathiformes (Pipefishes and Seahorses)ClassActinopterygii (Ray-finned fishes)Maximum length25.0Depth range0–11 m (0–36 ft)EnvironmentMarine; demersal; depth range 0 - 11 mClimateSubtropicalDistributionEastern Pacific: Redondo Beach in southern California, USA to central Baja California, Mexico.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