How to Identify Indian Glass Barb

To identify Indian Glass Barb (Pethia gelius), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Body is largely translucent to semi-transparent, often with a yellowish or golden sheen, especially in males. Features 3-5 irregular, dark, vertical blotches or spots along the flanks. Fins are typically hyaline (clear), sometimes with a faint yellowish or reddish tint, particularly in breeding males.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Semi-transparent body revealing internal organs, 3-5 irregular dark blotches on the flanks, Small size, typically not exceeding 4 cm

Dorsal fin

Single dorsal fin, typically with 3-4 unbranched and 8 branched rays. The last unbranched ray is often ossified and serrated in mature males.

Tail fin

Forked caudal fin.

Pectoral fin

Paired pectoral fins, relatively small.

Distinctive fins

Pelvic fins are also paired and small. Anal fin is short with 3 unbranched and 5 branched rays.

Identification Tips

1. 1

   Body Transparency

   The most striking feature is its semi-transparent body, allowing a view of its spine and internal organs. This is less pronounced in older or stressed individuals.

2. 2

   Lateral Blotches

   Look for 3 to 5 distinct, irregular, dark blotches or spots arranged vertically along the sides of the body. The number and intensity can vary.

3. 3

   Size

   Its small adult size (typically under 4 cm) helps distinguish it from larger barb species.

4. 4

   Absence of Barbels

   Unlike some other barb species, Pethia gelius lacks barbels around its mouth.

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