How to Identify Longear Sunfish

To identify Longear Sunfish (Lepomis megalotis), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Highly variable, but generally olive to brown on the back, fading to yellow or orange on the sides and belly. Sides are often adorned with iridescent blue-green spots and wavy lines. The opercular flap is typically black with a prominent red or orange margin. Males are significantly more colorful during breeding season, displaying intense blues, oranges, and reds.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Elongated, flexible opercular flap (ear flap) that is typically black with a red or orange margin, often longer than that of other sunfish species., Wavy, iridescent blue-green lines on the operculum and cheek., Small mouth, with the upper jaw not extending past the front of the eye., Often has a series of vertical bars or blotches on the sides, especially in juveniles or stressed individuals.

Dorsal fin

Single dorsal fin with 9-11 spines followed by 10-12 soft rays. The spiny and soft-rayed portions are broadly connected.

Tail fin

Slightly forked caudal fin.

Pectoral fin

Rounded and relatively short pectoral fins.

Distinctive fins

Anal fin with 3 spines and 9-11 soft rays. Pelvic fins are thoracic.

Identification Tips

1. 1

   Opercular Flap

   The most distinguishing feature is the long, flexible, black opercular flap (ear flap) with a prominent red or orange margin. This flap is noticeably longer than that of most other sunfish species, especially in adults.

2. 2

   Coloration

   Look for the vibrant, iridescent blue-green wavy lines on the operculum and cheek. The body color is typically olive to brown dorsally, transitioning to bright orange or yellow ventrally, particularly in breeding males.

3. 3

   Mouth Size

   The Longear Sunfish has a relatively small mouth; the upper jaw does not extend beyond the front of the eye.

4. 4

   Body Shape

   It has a deep, compressed body typical of sunfish, but often appears slightly more elongated than a Pumpkinseed.

Explore Longear Sunfish