How to Identify Southern Mullet

To identify Southern Mullet (Liza richardsonii), look at these key features.

Physical Characteristics

Body shape

torpedo

Coloration

Dorsal surface is typically dark grey to olive-green, fading to silvery-white on the flanks and belly. Fins are generally dusky. A faint dark spot may be present at the base of the pectoral fin.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Small, terminal mouth with fine teeth., Well-developed adipose eyelid covering most of the eye., Two widely separated dorsal fins., Pectoral fin typically reaches to or just beyond the origin of the first dorsal fin., Scales are cycloid and relatively large.

Dorsal fin

Two separate dorsal fins; first dorsal with 4 spines, second dorsal with 1 spine and 8-9 soft rays.

Tail fin

Moderately forked caudal fin.

Pectoral fin

Pectoral fins are relatively long, reaching to or beyond the origin of the first dorsal fin.

Distinctive fins

Anal fin with 3 spines and 8-9 soft rays. Pelvic fins are subabdominal.

Identification Tips

1. 1

   Adipose Eyelid

   Look for the prominent, fatty eyelid that covers a significant portion of the eye, a key characteristic of many mullet species, and particularly well-developed in Liza richardsonii.

2. 2

   Pectoral Fin Length

   Observe the length of the pectoral fin; in L. richardsonii, it typically extends to or slightly past the origin of the first dorsal fin.

3. 3

   Body Shape and Coloration

   Note the streamlined, torpedo-shaped body and the characteristic dark grey/olive-green dorsal fading to silvery-white ventral coloration.

4. 4

   Mouth

   The small, terminal mouth with fine teeth is indicative of its detritivorous feeding habits.

Explore Southern Mullet