Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Maylandia: In honour of Hans J. Mayland, German ictiologist (Ref. 45335); glaucos: The specific epithet, glaucos, is Greek for bluish gray, in reference to the blue-gray body and fin coloration; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical; 12°S - 13°S, 34°E - 35°E
Africa: endemic to Lake Malawi, Mozambique (Ref. 86409).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.9 cm SL male/unsexed; (Ref. 86409)
Morphology | Morphometrics
(total): 17 - 19;
soft rays: 7 - 8. Diagnosis: A moderately-sloped head and bicuspid teeth in the outer row of the jaws place this species in Maylandia (Ref. 86409). The absence of a black submarginal band in the dorsal fin in conjunction with a yellow gular region and branchiostegal membranes, and the light-brown coloured females that have yellow fin margins distinguish M. glaucos from other members of Maylandia, except M. chrysomallos and M. benetos; there are generally fewer teeth in the outer row of the lower left jaw, range 14–19, of M. glaucos compared to M. chrysomallos, range 15–25, and more compared to M. benetos, range 9–13 (Ref. 86409). On the basis of colour pattern, females of M. glaucos cannot reliably be distinguished from those of most other members of the Aurora group, but they differ from those of M. xanthos by a shorter lower jaw, 28.8–32.8% of head length vs. 34.6–36.7%; and from those of M. aurora by 8–11 vertical bars below the dorsal fin vs. 6 in M. aurora (Ref. 86409).
Found in intermediate habitat, where transition
between rocks and sand occurs; 3-20 m deep; males hold territories mainly over sand near rocks and excavate
beneath rocks to construct their spawning burrow; feeds on sediment-rich aufwuchs on rocks from which it rakes diatoms and loose algal strands (Ref. 86409).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ciccotto, P.J., A. Konings and J.R. Stauffer Jr., 2011. Descriptions of five new species in the genus Metriaclima (Teleostei: Cichlidae) from Lake Mala?i, Africa. Zootaxa 2738:1-25. (Ref. 86409)
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
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.6 ±0.2 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .