How to Identify Gangetic Mystus

To identify Gangetic Mystus (Mystus cavasius), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Body color typically silvery-grey to brownish-yellow, often with a distinct dark, longitudinal stripe running from the operculum to the caudal fin base. The fins are usually hyaline (transparent) to dusky, sometimes with a yellowish tinge. Juveniles may exhibit more pronounced patterning.

Scale type

none

Mouth position

terminal

Distinctive features

Four pairs of prominent barbels: one nasal, one maxillary (reaching beyond the pectoral fin base), and two mandibular (shorter)., A distinct dark lateral stripe., Adipose fin present and relatively long., Serrated pectoral fin spine.

Dorsal fin

Short-based, with a strong, serrated spine and 7 soft rays. Followed by a relatively long adipose fin.

Tail fin

Deeply forked, with pointed lobes.

Pectoral fin

Strong, with a serrated spine and 8-9 soft rays.

Distinctive fins

Pelvic fins with 6 soft rays. Anal fin with 10-13 soft rays.

Identification Tips

1. 1

   Lateral Stripe

   Look for the prominent dark, longitudinal stripe running along the flank from the gill cover to the tail base. This is a key distinguishing feature.

2. 2

   Barbels

   Observe the four pairs of barbels. The maxillary barbels are particularly long, often extending past the base of the pectoral fins.

3. 3

   Adipose Fin

   Note the presence and relatively long length of the adipose fin, which is characteristic of Mystus species.

4. 4

   Pectoral Spine

   Carefully examine the pectoral fin spine, which is strong and serrated along its posterior edge.

Explore Gangetic Mystus