How to Identify Indian long-whiskered catfish

To identify Indian long-whiskered catfish (Mystus seenghala), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Dorsal surface typically dark grey to brownish, fading to silvery-white on the ventral side. Juveniles may have faint vertical bands or spots that fade with age. Fins are often dusky.

Scale type

none

Mouth position

terminal

Distinctive features

Four pairs of prominent barbels, with the maxillary barbels extending well beyond the caudal fin base in adults., Adipose fin is relatively long and distinct., Strong, serrated spines in the dorsal and pectoral fins., Large, broad head with a wide mouth.

Dorsal fin

One short dorsal fin with a strong, serrated spine and 7 soft rays, followed by a long adipose fin.

Tail fin

Deeply forked caudal fin with pointed lobes.

Pectoral fin

Pectoral fins with a strong, serrated spine and 8-10 soft rays.

Distinctive fins

Pelvic fins are small, abdominal. Anal fin is moderately long with 11-13 soft rays.

Identification Tips

1. 1

   Maxillary Barbels

   The most distinguishing feature; these barbels are exceptionally long, often reaching or exceeding the length of the body, extending past the caudal fin base in adults. This differentiates it from most other Mystus species.

2. 2

   Adipose Fin

   Relatively long and well-developed, starting behind the dorsal fin and extending towards the caudal peduncle.

3. 3

   Body Size and Shape

   Can grow to a very large size (up to 150 cm TL and 25 kg), with an elongated, somewhat compressed body. The head is broad and depressed.

4. 4

   Dorsal and Pectoral Spines

   Possesses strong, serrated spines in both the dorsal and pectoral fins, which can be used defensively.

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