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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Chaetostoma: Greek, chaite = hair + Greek, stoma = mouth (Ref. 45335); lexa: Named for Alexandra Keane, a sustainability activist, currently a Political Sciences student at the College of Charleston. A noun in apposition.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce demersale. Tropical
South America: Río Huallaga in Departament of Huánuco, Peru.
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 4.9 cm SL maschio/sesso non determinato; (Ref. 93320)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 10 - 11; Raggi anali molli: 1 - 3; Vertebre: 28. Distinguished from all congeners by two uniquely derived characteristics: crenulated skin folds on dorsal border along first pelvic-fin ray in mature males; and, posterior longest
evertible cheek odontodes robust with hooked tips, less than twice the length of the odontodes immediately anterior to them. Can be further diagnosed by the following combination of characters unique within the Loricariidae: naked snout with no tentacles; absence of nuchal plate; absence of first dorsal-fin spinelet; absence of adipose fin; three median unpaired plates in position of adipose fin; dentary wide with anguloarticular slightly
projected dorsolaterally; lateral anterior process of the basipterygia narrow, almost in contact with the medial anterior process of the basipterygia at midline (Ref. 93320).
Body shape (shape guide): elongated.
Encountered in pools and fast water channels (Ref. 93320).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Salcedo, N.J., 2013. Description of Loraxichthys lexa, new genus and species (Siluriformes: Loricariidae) from the Río Huallaga Basin, central Peru, with notes on the morphology of the enigmatic Lipopterichthys carrioni Norman, 1935. Zootaxa 3640(4):557-571. (Ref. 93320)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00737 - 0.03739), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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