How to Identify Gangetic Ailia

To identify Gangetic Ailia (Ailia coila), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Body is largely translucent or silvery-white, often with a faint yellowish or greenish tinge dorsally. The internal organs are visible through the skin, giving it a 'glass' appearance. Fins are hyaline (transparent).

Scale type

none

Mouth position

superior

Distinctive features

Absence of a dorsal fin (adipose fin is present but very small), Four pairs of long, delicate barbels around the mouth, Deeply forked caudal fin, Laterally compressed, elongated body, Translucent body allowing internal organs to be visible

Dorsal fin

Absent (adipose fin present, very small)

Tail fin

Deeply forked, symmetrical

Pectoral fin

Long and pointed, reaching beyond the pelvic fin origin

Distinctive fins

Pelvic fins are small; anal fin is very long, extending from behind the pelvic fins to the caudal peduncle.

Identification Tips

1. 1

   Dorsal Fin

   The most striking feature is the complete absence of a true dorsal fin. Only a tiny adipose fin may be present near the caudal peduncle.

2. 2

   Body Translucency

   Its 'glassy' or translucent body, especially when alive, makes internal organs visible, distinguishing it from most other catfish.

3. 3

   Barbels

   Possesses four pairs of long, slender barbels around the mouth, which are highly sensitive and used for foraging.

4. 4

   Anal Fin Length

   The anal fin is exceptionally long, extending for a significant portion of the ventral body profile.

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