Corydoras iiap

Corydoras iiap Tencatt, Ruiz-Tafur & Chuctaya, 2024

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Teleostei (teleosts) > Siluriformes (Catfishes) > Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: Corydoras: Greek, kory = helmet + greek, doras = skin (Ref. 45335); iiap: Named for the Instituto de Investigaciones de la Amazonía Peruana (IIAP), in Loreto, Peru, which has been the center for the study of the biodiversity of the Peruvian Amazon for over four decades; noun in apposition.

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

Freshwater; demersal. Tropical

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South America: Peru.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 138496)

Short description Identification keys | Morphology | Morphometrics

This species is distinguished from its congeners by the following characters: with branch of the temporal sensory canal at sphenotic, which gives rise to the supraorbital canal, with two pores; upper tooth plate of branchial arch with three series of teeth; the area at the corner of the mouth, ventral to the maxillary barbel, with a small, triangular fleshy flap, which may variably present a small prolongation at its posterior tip, forming a short barbel-like structure; with a conspicuous dark brown or black patch transversally crossing the orbit, forming a mask-like blotch; absence of a distinct color pattern along midline of flank; with dorsolateral body plates only with small, irregular, rounded or vertically elongated dark brown or black blotches; ground color of plates typically light yellow or beige; absence of a relatively large, conspicuous dark patch on anterior portion of dorsal fin; with dorso- and ventrolateral body plates with pale yellow or beige background coloration, with dark blotches on flanks conspicuously standing out from the ground color of plates; with a conspicuous mask-like blotch; with ossified portion of hypobranchial 2 ranging from moderately developed, with size similar to cartilaginous portion, to well developed, around twice size of cartilaginous portion, even in smaller specimens with up to about 4.2 cm SL (Ref. 138496).
Body shape (shape guide): short and / or deep; Cross section: oval.

Biology     Glossary (e.g. epibenthic)

Captured in streams with black, muddy, and mixed waters, all tributaries of the Ríos Itaya and Nanay. The sampled environments are first-order streams, with constant fluctuations in water level influenced mainly by local rainfall; aquatic environments: width ranging from 4 to 8.1 m, depth ranging from 0.6 to 1.3 m; on the average, physicochemical parameters of the type-locality: water temperature 26.2°C, pH 6.3, dissolved oxygen 2.4 mg/l, electrical conductivity of 30.5 µS/cm, and total suspended solids 15.0 mg/l. For other localities (remaining collecting sites within the list of paratypes), the average parameters were: water temperature ranged between 24.5°C and 27.0°C, pH between 5.4 and 5.5, dissolved oxygen between 3.8 and 5.4 mg/l, electrical conductivity between 17.0 and 28.0 µS/cm, and, finally, total suspended solids between 8.0 and 14.0 mg/l. The substrate was mostly composed by sand, with some decomposing plant material. In most sampled streams,This species was observed in syntopy with C. sychri and C. ambiacus (Ref. 138496).

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

Main reference Upload your references | References | Coordinator : Reis, Roberto E. | Collaborators

Tencatt, L.F.C.,, M. Ruiz-Tafur and J. Chuctaya, 2024. A new masked Corydoras (Siluriformes: Callichthyidae) from the Itaya and Nanay River basins, Peruvian Amazon. Neotropical Ichthyol.. 22(2):e240016:1-26. (Ref. 138496)

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

Not Evaluated 

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 | 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 | World Records Freshwater Fishing | Zoobank | Zoological Record

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=0.02455 (0.00934 - 0.06448), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.0   ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100). 🛈