Oblique-banded cardinalfish (Apogon semiornatus)

Scientific name: Apogon semiornatus Peters, 1876

The Oblique-banded cardinalfish (Apogon semiornatus) is a marine fish of the family Apogonidae. Native range: Indo-West Pacific, Red Sea and Gulf of Oman south to Natal, South Africa and east to the western Pacific where it ranges from southern Japan to Australia.

Biology

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. Coloration of body characteristic and more translucent. Main stripe on side of body dark-reddish. One from snout to anal fin and other above end of first to end of caudal fin. Attains 4.5 cm TL.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Apogon semiornatus
Family: Apogonidae (Cardinalfishes)
Order: Perciformes (Perch-like fish)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 7.5
Depth range: 5–30 m (16–98 ft)
Environment: Marine; reef-associated; depth range 5 - 30 m
Climate: Tropical
Distribution: Indo-West Pacific: Red Sea and Gulf of Oman south to Natal, South Africa and east to the western Pacific where it ranges from southern Japan to Australia.
Conservation status (IUCN): Not Evaluated
Threat to humans: Harmless
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

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

Last updated 27 September 2026