How to Identify Shiner

To identify Shiner (Cyprinella), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Silvery bodies, often with a darker lateral stripe or blotches. Breeding males often develop vibrant red, orange, or blue coloration on fins and body, along with nuptial tubercles (small, keratinous bumps) on the head and sometimes body.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Typically have 8-9 dorsal fin rays and 8-10 anal fin rays., Lateral line usually complete and slightly decurved., Pharyngeal teeth typically in two rows., Snout often pointed, mouth terminal or slightly subterminal.

Dorsal fin

Single dorsal fin, typically located mid-body, with a short base.

Tail fin

Forked caudal fin.

Pectoral fin

Paired pectoral fins, typically moderate in size.

Distinctive fins

Pelvic fins abdominal. Fins can be clear to yellowish, often becoming reddish or orange in breeding males.

Identification Tips

1. 1

   Body Shape and Size

   Generally slender, fusiform body, typically reaching 7-15 cm (3-6 inches) in length, though some species can be larger.

2. 2

   Coloration

   Silvery sides, often with a dark lateral stripe or spot near the caudal fin base. Breeding males exhibit striking colors (red, orange, blue) and nuptial tubercles on the head.

3. 3

   Fin Ray Counts

   Counting dorsal and anal fin rays (typically 8-9 dorsal, 8-10 anal) can help narrow down species within the genus.

4. 4

   Mouth Position

   Terminal mouth, sometimes slightly oblique, indicating a mid-water or surface feeder.

5. 5

   Lateral Line

   Complete lateral line, often with a slight curve downwards anteriorly.

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