Acentronura gracilissima (Temminck & Schlegel, 1850)
Bastard seahorse

Family:  Syngnathidae (Pipefishes and seahorses), subfamily: Syngnathinae
Max. size: 
Environment:  reef-associated; marine
Distribution:  Western Pacific: Restricted to areas around Japan and Indochina but there are records from the central and western Indian Ocean.
Diagnosis:  Dorsal soft rays (total): 16-16. Rings: 13+44-46.
Biology:  Found among seaweed and near the base of red algae on shallow rocky reefs (Ref. 637). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).
IUCN Red List Status: Least Concern (LC); Date assessed: 12 April 2016 Ref. (130435)
Threat to humans:  harmless


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