Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Sciaenidae
(Drums or croakers)
Etymology: Pseudotolithus: Greek, pseudes = false + greek, otos = ear + Greek, lithos = stone (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; demersal; depth range 0 - 160 m (Ref. 3593). Tropical; 12°N - 17°S
Eastern Atlantic: Guinea-Bissau (Ref. 26999) to southern Angola (Ref. 3593, 81656). Possibly also occurring more to the north (Ref. 81656).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 3593); common length : 35.0 cm TL male/unsexed; (Ref. 3593)
Morphology | Morphometrics
soft rays: 7. Diagnosis: moderately sized species with an elongate and laterally compressed body; dorsal with 9 (10?) spines in 1st part, second part with 1 spine and 35-39 soft fin rays; second anal spine clearly shorter than first anal fin soft ray, i.e. about half its length, and robust; pectoral fins long, 23.3-27.3% SL; caudal fin S-shaped; mouth inferior almost horizontal; maxilla extending to posterior half of eye; 7-9/1/4-7 (total 13-18) gill rakers on 1st gill arch; lower part of 1st gill arch with 2-6 reduced additional gill rakers, upper part with 0-2 reduced additional ones; gill rakers moderately long and fine, but shorter than the gill filament at angle between lower and upper part of gill arch; preopercular edge feebly denticulated but never with spines; eyes rather small, 4.6-5.4 times in HL, but this character is difficult to use for identification because of allometry (Ref. 81656).
Coloration: generally very dark, but occasionally pale silver often with faint dark brown oblique lines on sides; ventral side of head and belly yellowish; all fins greyish to very dark brown, black (Ref. 81656).
Occurs in coastal waters from the shore to about 70 m over mud bottom, but moves to deeper water. Also found in estuaries and coastal lagoons (Ref. 3593, 81656). Mainly feeds on benthic invertebrates (Ref. 81656).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chao, L.N. and E. Trewavas, 1990. Sciaenidae. p. 813-826. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 3593)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 19.2 - 27.9, mean 26 (based on 102 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00262 - 0.01152), b=3.08 (2.90 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100) .