Author: Risso, 1827
FBname: Black-striped pipefish
Remark: <i>Syngnathus caspius</i> Eichwald, 1831, was considered a synonym of <i>Syngnathus abaster</i> Risso, 1827.  Reconsidered as a valid species since 2009 in various ichthyofaunas without compelling evidence until Zarei <i>et al.</i> (2021: Ref. 130571) used genetic characters (see the introduction for a complete history of the taxonomy).  Information under <i>Syngnathus abaster</i> to be reviewed in FB.
Comments: Euryhaline, found among detritus or vegetation over sand or mud, within a temperature range of 8° to 24°C.  Probably an amphidromous species (Ref. 51243) but migratory behavior needs verification.  Ovoviviparous (Ref. 205).  The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).  Early free-living young measure 23 mm TL (Ref. 6733).