Stenogobius blokzeyli (Bleeker 1860)

Upper pectoral base scaled; lower base may or may not be scaled; breast with embedded scales; belly anteriorly scaled close to pelvic base; upper jaw teeth 3+1, lower jaw teeth 3-4+1-2 (Ref. 34009).

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).

Dorsal spines (total): 7; Dorsal soft rays (total): 11; Analspines: 1; Analsoft rays: 11