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); carlae: Named for Carla Simone Pavanelli (Universidade Estadual de Maringá, Núcleo de
Pesquisas em Limnologia, Ictiologia e Aqüicultura) for her contributions to Neotropical ichthyology.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Río Paraguay basin in Paraguay.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.4 cm SL male/unsexed; (Ref. 94156)
Morphology | Morphometrics
soft rays: 9 - 11. A member of the Microglanis parahybae species complex on the basis of color pattern which differs from other species of the genus by having the following combination of characters: paired and anal fins mottled or with thin faint bands, trunk with dark-brown saddles, anterior margin of pectoral spine with serrations retrorse proximally and antrorse distally, tip of pectoral spine as a distinct bony point, continuous portion of lateral line reaching vertical through last dorsal-fin ray, caudal peduncle with irregularly shaped, faint to dark blotch, maxillary barbel surpassing vertical through dorsal-spine origin, and dark bar on posterior flank continuous from base of adipose fin to that of anal fin (Ref. 79079).
Occurs in moderately flowing sections of streams with dark brown water and bottom of sand and mud. Collected using a dip net under floating vegetation at a depth of 1.5 to 2 m (Ref. 79079). Two specimens have stomach contents consisting of algae and insect larvae (Ref. 79079).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Vera Alcaraz, H.S., W.J. da Graça and O.A. Shibatta, 2008. Microglanis carlae, a new species of bumblebee catfish (Siluriformes: Pseudopimelodidae) from the río Paraguay basin Paraguay. Neotrop. Ichthyol. 6(3):425-432. (Ref. 79079)
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), 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
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .