Acentronura gracilissima

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Acentronura gracilissima
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Syngnathiformes
Family: Syngnathidae
Genus: Acentronura
A. gracilissima
Binomial name
Acentronura gracilissima
(Temminck & Schlegel, 1850)
  • Hippocampus gracilissimus Temminck & Schlegel, 1850
  • Atelurus germani Duméril, 1870

Acentronura gracilissima, the bastard seahorse, is a species of pygmy pipehorse from the coastal waters of Japan and Vietnam, it is expected to occur elsewhere but reports in other areas need to be confirmed.[2] It occurs on rock and algae reefs downto depths of 40 metres (130 ft) where it feeds on mysids, small crabs, fish larvae and probably also on harpacticoid copepods and gammarid shrimps as recorded in other species in the family Syngnathidae. The bastard seahorse is ovoviviparous, the males incubate the eggs in a brood pouch located under the tail.[1]


  1. ^ a b Pollom, R. & Raffan, O. (2016). "Acentronura gracilissima (errata version published in 2017)". The IUCN Red List of Threatened Species. 2016: e.T65363473A115409597. doi:10.2305/IUCN.UK.2016-3.RLTS.T65363473A67618639.en.
  2. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2018). "Acentronura gracilissima" in FishBase. February 2018 version.