Found chiefly around coral reefs and islands but extends a little further from shore than Hyporhamphus (R.) dussumieri which has a similar range . Found in schools . Feeds on zooplankton also small fishes and detritius organic matter . Eggs covered with adhesive filaments to assist in attaching to floating and benthic objects .
Dorsal spines (total): 0; Dorsal soft rays (total): 14 - 17; Anal spines: 0; Anal soft rays: 15 - 19; Vertebrae: 54 - 59. Body deep blue above, silvery stripe on side, silvery white below; caudal fin bluish, other fins unpigmented; tip and distal half of underside of lower jaw bright carmine red . : elongated; Cross section: oval.
Behavioural data for Tropical halfbeak is currently being reviewed.
Marine; reef-associated; depth range 0 - 6 m . Tropical East Africa through the Indian Ocean islands to western Australia, New Guinea, Philippines, and islands of Oceania.
zooplankton (Ref
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Hemiramphus affinis | Günther | 1866 | Synonym |
| Hemiramphus australensis | Seale | 1906 | Synonym |
| Hemirhamphus affinis | Günther | 1866 | Synonym |
| Hemirhamphus delagoae | Barnard | 1925 | Synonym |
| Hyporhamphus delagoae | Barnard | 1925 | Synonym |
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
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