How to Identify Silverjaw Minnow

To identify Silverjaw Minnow (Ericymba buccata), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Dorsal surface is typically olive to light brown, fading to silvery sides and a white belly. The most striking feature is the silvery sheen on the lower jaw and operculum. A faint lateral stripe may be present.

Scale type

cycloid

Mouth position

subterminal

Distinctive features

Prominent, large, mucus-filled sensory pores on the head and lower jaw, giving a 'bubbly' appearance., Silvery lower jaw and operculum., Relatively large eyes., Small, subterminal mouth.

Dorsal fin

Single dorsal fin, typically with 8 rays, originating slightly behind the pelvic fin origin.

Tail fin

Moderately forked caudal fin.

Pectoral fin

Pectoral fins are relatively short.

Distinctive fins

All fins are generally clear to slightly dusky.

Identification Tips

1. 1

   Sensory Pores

   Look for the distinctive series of large, often visible, mucus-filled sensory pores on the underside of the head and lower jaw. This is the most reliable identifying feature.

2. 2

   Coloration

   Note the silvery sheen on the lower jaw and operculum, contrasting with the olive-brown back.

3. 3

   Mouth Position

   The small, subterminal mouth is adapted for bottom feeding.

4. 4

   Body Shape

   Its slender, elongated body is typical of many minnow species, but the head features are key.

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