Anchovies

Body tapering, belly rounded before pelvic fins, with 16 to 19 + 24 to 32 = 41 to 50 keeled scutes from isthmus to anus. Maxilla long, reaching to or almost to base of first pectoral fin ray. Pectoral fin with 6 filaments; rarely 13 or 14 branched fin rays which are longer than those of pelvic fin.

Spawn in school (Ref. 205).

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): 0; Analspines: 0; Analsoft rays: 80

Inhabits coastal waters and estuaries, but very few data based on reliable identifications (Ref. 189, 11230). Occurs in river (Ref. 12218); also coral reefs (Ref. 58534).

Inhabits coastal waters and estuaries, but very few data based on reliable identifications (Ref. 189, 11230). Occurs in river (Ref. 12218).

fisheries: subsistence fisheries

分布於西太平洋海域。臺灣發現於北部海域。

一般利用流刺網漁法捕獲。但因為魚體瘦薄，肉質較少，因此並非主要經濟魚種，市場上亦較少見。

體延長，側扁，向後漸細長。腹部稜鱗顯著，16-17+22-26。吻短，圓突，等於或略大於眼徑。眼中等大。口大，下位；口裂傾斜。上頜骨後延伸達胸鰭基部，上頜骨下緣有細鋸齒。齒細小，絨毛狀，上下頜齒單列；鋤骨和腭骨均有絨毛狀齒帶。鰓耙細長，18-21+25-30；左右鰓蓋膜相連，但不與峽部相連；鰓蓋條9-10。體被易脫落的薄圓鱗，縱列鱗60-65；頭部無鱗；胸鰭和腹鰭的基部各有1寬大的腋鱗；無側線。背鰭位於體前半部上方，背鰭基前方有1短棘，後接鰭條13；臀鰭起點距吻端較距尾鰭基為近，鰭條數74-86；胸鰭上部有6根游離鰭條，均延長為絲狀，向後延伸到或超過臀鰭起點；腹鰭短小，始於背鰭小棘的下方；尾鰭上下葉不對稱，上葉尖長，下葉短小，下葉的鰭條與臀鰭條相連。體銀白色，背緣偏墨綠色；尾鰭尖端稍帶黑色；背鰭、胸鰭、腹鰭淺色。

沿近海中上層魚類，以小型無脊椎動物為食。亦常可於河口區、沼澤區及內灣區發現。