Pseudotothyris janeirensis

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Pseudotothyris janeirensis Britski & Garavello, 1984

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drawing shows typical species in Loricariidae.

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

Teleostei (teleosts) > Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Pseudotothyris: Greek, pseudes = false + Greek, ous, otis = ear + Greek, thyris, -idos = little door (Ref. 45335).

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

Freshwater; demersal. Tropical

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

South America: coastal drainages in Rio de Janeiro state, Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL male/unsexed; (Ref. 36885)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 8-9; Anal soft rays: 5 - 6; Vertebrae: 28. Pseudotothyris janeirensis is distinguished from all congeners by possessing dorsal-fin spinelet (vs. absent); transverse dark saddles on the dorsum absent (vs. present); subocular cheek plate always absent (vs. generally present); and odontodes on lateral plates aligned in well-defined series (vs. randomly distributed). It can be diagnosed from Pseudotothyris obtusa by having abdomen almost entirely naked, except for one to three lateral abdominal plates and one to two preanal plates (vs. abdomen partially or totally covered by scattered plates); 31-35 teeth on upper pharyngeal toothplate (vs. 20-30); and 18-23 teeth on ceratobranchial 5 (vs. 12-15 ). It differs differs from Pseudotothyris ignota by having the anterior margin of snout completely covered by odontodes (vs. anterior margin of snout with an odontode-free band) (Ref. 116384).

Biology     Glossary (e.g. epibenthic)

Collected from a lentic environment, regionally known as açude, a kind of water reservoir. It is uncommon for Pseudotothyris and for the majority of the members of Hypoptopomatinae to occur in this type of habitat (Ref. 116384).

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

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

Martins, F.O., H.A. Britski and F. Langeani, 2014. Systematics of Pseudotothyris (Loricariidae: Hypoptopomatinae). Zool. J. Linn. Soc. 170:822-874. (Ref. 116384)

IUCN Red List Status (Ref. 130435)

  Near Threatened (NT) (B1b(iii)); Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00646 - 0.06755), b=3.03 (2.78 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).