Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Kurtiformes
(Nurseryfishes, cardinalfishes.) > Apogonidae
(Cardinalfishes) > Apogoninae
Etymology: Apogon: Greek, a = without + Greek pogon = chin, beard (Ref. 45335); erythrosoma: Named for its reddish coloration; Greek erythros for red and soma for body; noun in apposition. More on authors: Gon & Randall.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Western Indian Ocean: Red Sea and the Maldive Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.8 cm SL male/unsexed; (Ref. 50837)
Morphology | Morphometrics
soft rays: 8. This species is distinguished by the following set of characters: D VI + I,9 (second dorsal spine 1.3-1.7 in head length); A II,8; pectoral fin rays 11-12 (rarely 13); 1½ scales between lateral line and first dorsal-fin base; gill-rakers 4-5 + 12-15, developed rakers 2 + 9-12; ceratobranchial rakers 8-9; smooth preopercle ridge; edge of posterior preopercle serrated, the angle and ventral part crenulated and membranous; anterior nostril closer to upper lip than to posterior nostril; skin flap forming dorsal edge of first supraorbital pore ending laterally with a small notch under or slightly before medial margin of anterior nostril, but not reaching base of nostril’s tube; caudal-peduncle depth 2.0-2.9 in its length (Ref. 50837).
The smallest female with mature gonads was a 2.81 cm individual (Ref. 50837).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gon, O. and J.E. Randall, 2003. A review of the cardinalfishes (Perciformes: Apogonidae) of the Rea Sea. Smithiana Bull. 1:1-47. (Ref. 50837)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 26.2 - 27.9, mean 26.7 °C (based on 18 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00473 - 0.02425), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .