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Creagrutus cerritulus Netto-Ferreira & Vari, 2017

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

Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Characidae (Characins) > Stevardiinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335);  cerritulus: From the Latin cerritulus, meaning strange, in reference to the intense modifications of representatives of this species relative both to the other species of Creagrutus and across the Stevardiinae and even the Characidae.

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

Freshwater; benthopelagic.   Tropical; 8°C - ? (Ref. 116020)

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

South America: Río Cachiyacu, a tributary of the Río Huallaga, Amazon basin in Peru.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 116020)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 10; Anal soft rays: 13 - 15; Vertebrae: 36 - 37. Creagrutus cerritulus can be easily distinguished from all congeners by the following unique characters: mouth distinctly ventrally positioned; dentary and premaxilla dentition strongly spatulate with the central and adjacent cusps of similar size; anterior portion of the dentary strongly bent forming a nearly 120° angle relative to the posterior portion of the lower jaw and resulting in the cutting edges of the dentary teeth running parallel to the distal axis of the jaw; symphyseal interdigitations present on the lingual surface between the contralateral premaxillae; a notch along the posterior margin of the maxilla present which serves for the insertion of the ligamentum primordiale; distal tips of the mesethmoid wings anteriorly bent; very tight association between the posterior, cuneiform process of the vomer and the anterior portion of the parasphenoid; intestine distinctly elongated; size of stomach reduced; and swimbladder reduced, especially the posterior chamber (Ref. 116020).

Biology     Glossary (e.g. epibenthic)

Inhabits river characterized by moderate to strong currents over a substrate composed primarily of pebbles and rocks. The water was reddish in color, alkaline, with high conductivity (10000 ?S/cm) and 'very salty' water. Collected along with only six other fish species.

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

Main reference Upload your references | References | Coordinator | Collaborators

Netto-Ferreira, A.L. and Vari. R.P., 2017. A new highly modified species of Creagrutus (Characidae: Stevardiinae) apparently mimetic of Prodontocharax. Copeia 105(2):368-374. (Ref. 116020)

IUCN Red List Status (Ref. 119314)


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=0.01148 (0.00494 - 0.02670), b=2.99 (2.80 - 3.18), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.5   ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .