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Teleostei (teleosts) > Siluriformes (Catfishes) > Cetopsidae (Whale catfishes) > Cetopsinae
Etymology: Denticetopsis: Latin, dens, dentis = teeth + Greek, ketos = marine monster, whale + Greek, opsis = appearance (Ref. 45335); praecox: Specific name derived from the Latin precocious, in reference to the small size of this species at sexual maturity.

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

Freshwater; demersal; pH range: 4.3 - 5.0. Tropical

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

South America: upper Negro River basin.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.3 cm SL male/unsexed; (Ref. 39603)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal soft rays: 25 - 30; Vertebrae: 39 - 40. Readily distinguished from other members of the genus by its color pattern consisting of a dark brown dorsum, speckled to dark sides, light venter, pale fins and a large dark spot on the basal half of the dorsal fin. Among the smallest species in the family, maturing between 30-40 mm SL.

Known from cobble-pebble bottom river habitats.

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

Main reference Upload your references | References | Coordinator : Ferraris, Jr., Carl J. | Collaborators

Vari, R.P., C.J. Ferraris Jr. and M.C.C. de Pinna, 2005. The neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study. Neotrop. Ichthyol. 3(2):127-238. (Ref. 56045)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 17 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
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Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
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Maturity
Maturity/Gills rel.
Fecundity
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Spawning aggregations
Eggs
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Larvae
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Distribution
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Anatomy
Gill area
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Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
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Toxicity (LC50s)

Genetics
Genetics
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Denticetopsis praecox (Ferraris & Brown, 1991)