How to Identify White Catfish

To identify White Catfish (Ameiurus catus), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Typically pale gray to bluish-gray on the back, fading to silvery-white on the sides and belly. Some individuals may exhibit a yellowish or olive tint, especially in turbid waters. Juveniles may have faint mottling or spots that fade with age. The fins are generally dusky.

Scale type

none

Mouth position

terminal

Distinctive features

Moderately forked caudal fin (tail fin), less deeply forked than Channel Catfish., 8 barbels around the mouth (4 on the chin, 2 maxillary, 2 nasal)., Absence of scales., Adipose fin present., Relatively slender body compared to bullheads.

Dorsal fin

Single dorsal fin with a strong, serrated spine and 6-7 soft rays. The spine is venomous.

Tail fin

Moderately forked, with rounded lobes. The fork is less pronounced than in Channel Catfish.

Pectoral fin

Each pectoral fin has a strong, serrated spine and several soft rays. These spines are venomous.

Distinctive fins

Adipose fin is small and fleshy, located between the dorsal and caudal fins.

Identification Tips

1. 1

   Caudal Fin (Tail)

   The White Catfish has a moderately forked tail, which is less deeply incised than the deeply forked tail of a Channel Catfish (Ictalurus punctatus) but more forked than the rounded or slightly emarginate tails of bullheads (Ameiurus spp.).

2. 2

   Body Coloration

   Generally paler in color, often a uniform gray or bluish-gray, lacking the distinct spots often seen on juvenile Channel Catfish. Bullheads tend to be darker (brown, black, yellow).

3. 3

   Anal Fin Rays

   Count the rays in the anal fin. White Catfish typically have 19-24 anal fin rays. Channel Catfish usually have 24-29 rays, while Brown Bullheads have 20-24 and Yellow Bullheads have 24-27.

4. 4

   Head Shape

   The head of the White Catfish is relatively broad and somewhat flattened, but not as broad as some bullhead species.

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