Nematocharax venustus

Nematocharax venustus Weitzman, Menezes & Britski, 1986

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

Teleostei (teleosts) > Characiformes (Characins) > Acestrorhamphidae (American tetras) > Stichonodontinae
Etymology: Nematocharax: Greek, nemas, -atos = filament + Greek, charax = a marine fish without identification (Ref. 45335).
More on authors: Weitzman, Menezes & Britski.

Issue
See Weitzman, Menezes & Britski for detailed description.

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

Freshwater; benthopelagic; pH range: 6.0 - 7.5; dH range: 10 - 20. Tropical; 22°C - 26°C (Ref. 13614)

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

South America: Jequitinhonha River basin.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.2 cm SL male/unsexed; (Ref. 137577); 3.5 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Differs from its unique congener, Nematocharax costai, by having the following characters: presence of hooks or spinules on dorsal and pelvic-fins (vs. absence); more than seven anal-fin rays with spinules (vs. five rays); absence of a long dark pink horizontal mark on the caudal peduncle (vs. presence); four or fewer supraneurals (vs. five); pelvic-fin filament pale rosy (vs. yellow) (Ref. 93323).
Body shape (shape guide): short and / or deep.

Biology     Glossary (e.g. epibenthic)

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

Main reference Upload your references | References | Coordinator | Collaborators

Oyakawa, O.T., 1998. Catalogo dos tipos de peixes recentes do Museu de Zoologia da USP. I. Characiformes (Teleostei: Ostariophysi). Pap. Avuls. Zool. 39(23):443-507. (Ref. 27925)

IUCN Red List Status (Ref. 130435: Version 2025-2)

  Least Concern (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items (preys)
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
Territories
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaborators
Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures
References
References

Tools

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Special reports

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search |