Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Pseudopimelodidae
(Bumblebee catfishes, dwarf marbled catfishes)
Etymology: Microglanis: Greek, mikros = small + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); lundbergi: Named for the North American ichthyologist John G. Lundberg, coordinator of the Calhamazon project, who kindly provided specimens of the new species, and for his great contribution to the Systematics of Neotropical catfishes.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Rio Amazonas, near the Madeira and Itacoatiara tributaries, and
from rio Solimões in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.8 cm SL male/unsexed; (Ref. 94156)
Morphology | Morphometrics
soft rays: 11;
Vertebrae: 27. This species differs from all members of the genus Microglanis by having a forked caudal fin with a deep notch between upper and lower lobes, two pale juxtaposed and elliptical spots in the supraoccipital region, and length of the adipose-fin base 13.1-16.6% of SL. It can be separated from other species by the following morphometric characters: length of the head 27.4-30.0% of SL (vs. 24.7-26.4% in M. carlae; 23.9-25.1% in M. iheringi; 23.0-26.1% in M. parahybae; 23.0-25.4% in M. pataxo; 23.5-26.3% in M. robustus); eye diameter 8.0-9.9% of HL (vs. 12.4-17.6% in M. variegatus); interorbital distance 40.4-44.2% of HL (vs. 45.9-51.5% in M. cottoides; 46.5-49.8% in M. leptostriatus; 46.6-48.6% in M. malabarbai; 38.1-39.1% in M. pellopterygius; 50.9-53.1% in M. poecilus); mouth width 38.0-47.3% of HL (vs. 19.0-25.8% in M. cibelae; 17.5-21.9% in M. garavelloi; 20.1-22.6% in M. nigripinnis); predorsal length 35.5-38.6% of SL (vs. 38.9-46.2% in M. eurystoma); lateral line pores 6-8 (vs. 9 in M. ater and M. secundus); principal caudal rays 15 (vs. 14 in M. zonatus) (Ref. 94156).
Found in the main channel of the rio Amazonas (white waters) with bottom rich in organic matter
and pieces of wood (Ref. 94156).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Jarduli, L.R. and O.A. Shibatta, 2013. Description of new species of Microglanis (Siluriformes: Pseudopimelodidae) from the Amazon basin, Amazonas State, Brazil. Neotrop. Ichthyol. 11(3):507-512. (Ref. 94156)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .