HomeFish encyclopediaRay-finned fishesNeedle fishesHalfbeaksSimpletooth halfbeak Simpletooth halfbeak (Hyporhamphus unicuspis) Scientific name: Hyporhamphus unicuspis Collette & Parin, 1978 The Simpletooth halfbeak (Hyporhamphus unicuspis) is a marine fish of the family Hemiramphidae. Native range: Indian Ocean, Persian Gulf to Andaman Sea. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 14-16; Anal spines: 0; Anal soft rays: 16 - 18; Vertebrae: 49 - 51Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHyporhamphus unicuspisFamilyHemiramphidae (Halfbeaks)OrderBeloniformes (Needle fishes)ClassActinopterygii (Ray-finned fishes)Maximum length31.5EnvironmentMarine; pelagic-neriticClimateTropicalDistributionIndian Ocean: Persian Gulf to Andaman Sea.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