How to Identify Catla

To identify Catla (Labeo catla), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Dorsal side is dark grey to bluish-grey, fading to silvery-white on the flanks and belly. Fins are often dusky.

Scale type

cycloid

Mouth position

superior

Distinctive features

Very large, broad head, disproportionately large compared to the body., Prominent, upturned mouth with a thick, non-fringed lower lip., Absence of barbels., Large, cycloid scales., Deep body, laterally compressed.

Dorsal fin

Single, long dorsal fin with 13-14 branched rays, originating slightly anterior to the pelvic fins.

Tail fin

Deeply forked caudal fin.

Pectoral fin

Pectoral fins are relatively long, reaching the pelvic fins.

Distinctive fins

All fins are generally dusky or greyish.

Identification Tips

1. 1

   Head Size

   Catla has a remarkably large head, which is its most distinguishing feature, often making up a significant portion of its body length.

2. 2

   Mouth Position

   The mouth is distinctly upturned (superior), indicating its surface-feeding habit, and lacks barbels.

3. 3

   Body Depth

   The body is deep and laterally compressed, giving it a somewhat 'tall' appearance.

4. 4

   Coloration

   Dark greyish-blue dorsally, silvery on the sides and belly.

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