How to Identify Spanish Flag Snapper

To identify Spanish Flag Snapper (Lutjanus carponotatus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

The body is typically yellowish-white to silvery-white with 7-8 prominent reddish-brown to orange-brown longitudinal stripes running from the head to the caudal fin. The fins are often yellowish, and there may be a dark spot at the base of the pectoral fin. Juveniles tend to have more pronounced stripes.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

7-8 reddish-brown to orange-brown longitudinal stripes, Dark spot at the base of the pectoral fin (often indistinct in adults), Relatively deep body for a snapper

Dorsal fin

Single dorsal fin with 10 spines and 13-15 soft rays. The spinous and soft-rayed portions are continuous.

Tail fin

Slightly emarginate to truncate caudal fin.

Pectoral fin

Long pectoral fins, typically reaching to or beyond the anus.

Distinctive fins

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

Identification Tips

1. 1

   Stripes

   Count the number of reddish-brown longitudinal stripes (usually 7-8) and note their distinctness. These are the most defining feature.

2. 2

   Pectoral Fin Spot

   Look for a dark spot at the base of the pectoral fin, though it can be faint or absent in larger adults.

3. 3

   Body Shape

   Observe the relatively deep and compressed body typical of many snapper species.

4. 4

   Fin Ray Counts

   For precise identification, count dorsal fin spines (10) and soft rays (13-15), and anal fin spines (3) and soft rays (8-9).

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