Estuarine Thryssa

Belly with 14 to 16 + 8 or 9 = 22 to 25 keeled scutes from isthmus to anus. Maxilla short, reaching to hind border of pre-operculum; first supra-maxilla short, about half length of second. Pseudobranch very short. A diffuse saddle on nape; no dark blotch behind gill opening.

Dorsal spines (total): 0; Analspines: 0; Analsoft rays: 30 - 34

Presumed marine, pelagic, coastal, but also estuarine, thus tolerating lowered salinities. More data needed.

Thryssa aestuaria, the estuarine thryssa, is a species of ray-finned fish in the family Engraulidae. It is found in the Western Pacific Ocean.