Bartail jawfish (Opistognathus cuvierii)

Scientific name: Opistognathus cuvierii Valenciennes, 1836

Bartail jawfish (Opistognathus cuvierii)

The Bartail jawfish (Opistognathus cuvierii) is a marine fish of the family Opistognathidae. Native range: Southwest Atlantic, known only from southern Brazil.

Biology

Dorsal spines (total): 11; Dorsal soft rays (total): 16; Anal spines: 3; Anal soft rays: 16. Anterior nostril a short tube with simple cirrus on posterior rim; posterior end of maxilla of adult males produced as a thin flexible lamina that usually extends beyond posterior margin of opercle; spinous dorsal fin with a dark spot encircled by broad white ring; adult males with inner lining of maxilla and adjacent membranes with two dark stripes (innermost stripe not well developed), no stripes in females; buccal pigmentation consisting of a dark blotch on either side of esophageal opening widely separated by pale median area that continues between upper pharyngeals; caudal vertebrae 19.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Opistognathus cuvierii
Family
Opistognathidae (Jawfishes)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
11.4
Environment
Marine; reef-associated
Climate
Tropical
Distribution
Southwest Atlantic: known only from southern Brazil.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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