Diagnostic Description
provided by Fishbase
This species can be diagnosed by the following combination of characters: second dorsal fin usually with 9 soft-rays; first dorsal fin pointed with 3-5 elongate spines in males; pectoral fin usually with 15 soft-rays; caudal-fin length 29-35% of SL in males; premaxillary teeth 33-45 in
Migration
provided by Fishbase
Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).
Morphology
provided by Fishbase
Dorsal spines (total): 7; Dorsal soft rays (total): 9 - 10; Analspines: 1; Analsoft rays: 9 - 10