How to Identify Bay Anchovy

To identify Bay Anchovy (Anchoa mitchilli), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Translucent, silvery-white body with a prominent, iridescent silver stripe running along the flanks from the operculum to the caudal fin. The dorsal surface is typically olive-green to brownish.

Scale type

cycloid

Mouth position

inferior

Distinctive features

Large mouth extending well behind the eye, a characteristic feature of anchovies., Snout projecting beyond the tip of the lower jaw., Absence of a lateral line., Small, delicate scales that are easily shed.

Dorsal fin

Single, short-based dorsal fin located mid-body, typically with 10-13 soft rays.

Tail fin

Deeply forked caudal fin.

Pectoral fin

Small, low-set pectoral fins.

Distinctive fins

Anal fin is relatively long, originating beneath or slightly behind the posterior end of the dorsal fin, with 20-26 soft rays.

Identification Tips

1. 1

   Mouth position

   The most distinguishing feature is the large mouth that extends far behind the eye, with the snout projecting beyond the lower jaw. This is a key characteristic of the family Engraulidae.

2. 2

   Silver stripe

   A prominent, iridescent silver stripe along the side of the body is usually visible, especially in live specimens.

3. 3

   Anal fin length

   The relatively long anal fin, originating under or slightly behind the dorsal fin, helps differentiate it from some other small schooling fish.

4. 4

   Size

   Bay Anchovies are small, rarely exceeding 10-12 cm (4-5 inches) in total length.

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