Ituglanis mambai

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Related species
- Species in
  Ituglanis
- Species in
  Trichomycteridae
- - Classification -
- Trichomycterinae
- Trichomycteridae
- Siluriformes
- Teleostei
- Chordata
- Animalia

Ituglanis mambai Bichuette & Trajano, 2008

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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Ituglanis: Greek, itys, ityos = circle + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); mambai: Named for the karst region, Mambaí, where the species occurs.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic; pH range: 7.9 - ?. Tropical; 23°C - ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: single subterranean stream inside the Lapa do Sumidouro Cave in Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.8 cm SL male/unsexed; (Ref. 75008)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 9; Anal soft rays: 6; Vertebrae: 37 - 38. Can be differentiated from both epigean and cave congeners by the combination of the following features: absence of posterior fontanel (except for Ituglanis epikarsticus and Ituglanis macunaima; usually i7 pectoral-fin rays (except for Ituglanis bambui, Ituglanis passensis and Ituglanis epikarsticus; 6 pleural ribs (except for Ituglanis bambui, Ituglanis parahybae and Ituglanis ramiroi; total vertebrae 37-38 behind Weberian apparatus (except for Ituglanis bambui. Ituglanis laticeps and Ituglanis macunaima; predorsal length 65.1-70.8% in SL (except for Ituglanis bambui); caudal peduncle length 8.4-11.9% in SL; dorsal-fin base length 7.7-11.3% in SL; interobital width 29.2-36.5% in HL (except for the cave species); mouth width 43.4-64.0% in HL (except for Ituglanis bambui; pigmentation intermediary between epigean and cave Ituglanis species, composed by irregular light brown spots along the body; variable size of eyes and intermediate between those of epigean and formerly described cave-restricted congeners, with diameter in adults ranging from 0.5-1.0 mm (7.8-10.0% in HL) (except for Ituglanis cahyensis. Other diagnostic characters include presence of discrete medial-posterior projection on the maxillae; fronto-lacrimal one half-length of the maxillae and pointed backwards; posterior process of palatine half its length, with a tenuous medial concavity; 14 dorsal and 12 ventral procurrent rays (Ref. 75008).

Found in subterranean stream inside the cave with slow to fast-moving-waters, 10-90 cm deep on average, and bottom composed basically of sand, silt, some gravels and boulders. Occurs solitarily with swimming activity on the bottom and sometimes in the midwater. Exhibits cryptobiotic habits, hiding intro the gravels and under boulders when disturbed, and showing a negative response to carbide and flashlight. Prefers slow-moving pools (Ref. 75008).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Pinna, Mário de | Collaborators

Bichuette, M.E. and E. Trajano, 2008. Ituglanis mambai, a new subterranean catfish from a karst area of Central Brazil, rio Tocantins basin (Siluriformes: Trichomysteridae). Neotrop. Ichthyol. 6(1):9-15. (Ref. 75008)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Critically Endangered (CR) (B2ab(iii)); Date assessed: 18 May 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
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Stamps, coins, misc.

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00661 (0.00279 - 0.01564), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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