HomeFish encyclopediaRay-finned fishesNeedle fishesHalfbeaksFalse halfbeak False halfbeak (Oxyporhamphus micropterus similis) Scientific name: Oxyporhamphus micropterus similis Bruun, 1935 The False halfbeak (Oxyporhamphus micropterus similis) is a marine fish of the family Hemiramphidae. BiologyOccurs in inshore waters. A tropical species found within the 24°C isotherm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOxyporhamphus micropterus similisFamilyHemiramphidae (Halfbeaks)OrderBeloniformes (Needle fishes)ClassActinopterygii (Ray-finned fishes)Maximum length18.0EnvironmentMarine; pelagic-neriticClimateTropicalDistributionEastern Atlantic: Cape Verde to about Luanda, Angola. Western Atlantic: [Florida, USA according to ] North Carolina. south to Brazil. Nominative subspecies circumtropical in Indo-Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceHigh, 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