Hypostomus chrysostiktos  Birindelli, Zanata & Lima, 2007

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Hypostomus chrysostiktos
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > Loricariidae (Armored catfishes) > Hypostominae
Etymology: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335);  chrysostiktos: Derived from the Greek chrysos (after gold), and stiktus (after spotted), in allusion to the bright yellow spots present in the living specimens.

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

Freshwater; demersal.   Tropical

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

South America: known only from rio Paraguaçu basin in Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 26.0 cm SL male/unsexed; (Ref. 75060)

Short description Morphology | Morphometrics

Can be easily diagnosed from most loricariids, except Megalancistrus, a few species of Chaetostoma, and some species of Pterygoplichthys and Delturus, by having high number of dorsal-fin branched rays (10-11). Can also be differentiated by having slightly evertible cheek plates (vs. fully evertible cheek plates of Chaetostoma, Megalancistrus, and most other Ancistrini and Pterygoplichthyini taxa; or absence of evertible cheek plates in Delturinae, Neoplecostominae, Hypoptopomatinae, Loricariinae, Corymbophanini and Rhinelepini). It further differs from Delturus by possessing four branched anal-fin rays (vs. five or six) and from several loricariids by having naked abdomen (vs. plated in e.g. Pterygoplichthys), snout almost completely plated leaving just a small naked area on its tip (vs. snout completely naked in e.g. Chaetostoma) (Ref. 75060).

Biology     Glossary (e.g. epibenthic)

Found in dark water stretches of rivers with rocky bottom, at altitudes from 50-662 meters above sea level (Ref. 75060).

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

Main reference Upload your references | References | Coordinator : Fisch-Muller, Sonia | Collaborators

Birindelli, J.L.O., A.M. Zanata and F.C.T. Lima, 2007. Hypostomus chrysostiktos, a new species of armored catfish (Siluriformes: Loricariidae) from rio Paraguaçu, Bahia State, Brazil. Neotrop. Ichthyol. 5(3):271-278. (Ref. 75060)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00663 - 0.03457), b=2.93 (2.75 - 3.11), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low vulnerability (22 of 100) .