Classificatie / Names
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Siluriformes (Catfishes) >
Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes)
Etymology: Cruciglanis: Name from the Latin 'crucis' meaning cross and 'glanis' for catfish, referring to the crucifix shape of the second basibranchial in the branchial arch.; pacifici: Name refers to its endemic distribution in the coastal rivers draining the western slope of the Cordillera Occidental of Colombia; noun in apposition...
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: Colombia.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 11.2 cm SL mannelijk / geslacht onbekend; (Ref. 57850)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This species is distinguished by the following characters: subdorsal and subadipose spots are joined forming an oval-shaped clear spot; second basibranchial is ossified, cross-shaped with lateral processes; ectopterygoid bone shaped like an inverted comma, with its distal end narrow and directed medially towards the endopterygoid (=mesopterygoid); elongated anterior fontanel, reaching posteriorly to the level of the infraorbital sensory canal opening of the sphenotic bone; emarginate caudal fin with rounded edges, and ventral lobe larger than the dorsal one; caudal fin base with a dark spot and fused with the peduncular spot, covering the anterior three quarters of its length, and distal rim totally hyaline (Ref. 57850).
Inhabits undisturbed clear and shallow rivers in strong current and on gravel to small stone substrates (riffles or runs). Associated with Gobiesox sp., Chaetostoma marginatum, Cordilancistrus daguae, Astroblepus trifasciatus, Trichomycterus taenia; as well as shrimps (Atya). Stomach contents of 5 specimens caught in the Aguaclara River, revealed immature aquatic insects belonging to Trichoptera, Diptera, Ephemeroptera and Odonata, and terrestrial insects of the orders Hymenoptera and Coleoptera (Ref. 57850).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Ortega-Lara, A. and P. Lehmann A., 2006. Cruciglanis, a new genus of pseudopimelodid catfish (Ostariophysi: Siluriformes) with description of a new species from the Colombian Pacific coast. Neotrop. Ichthyol. 4(2):147-156. (Ref. 57850)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [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).
Trofisch niveau (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
