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Characiformes (Characins) >
Chilodontidae (Headstanders)
Etymology: Caenotropus: Greek, kainos = new + Greek, trope = turn, revolution (Ref. 45335); schizodon: The specific name, schizodon, from Greek words schize for divided and odons teeth, is in reference to the bifid premaxillary teeth present in the species (Ref. 58736).
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce pelagico. Tropical; 10°S - 11°S
South America: Brazil. Upper and middle portions of Rio Tapajós basin, Rio Amazonas basin (Ref. 58736).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 9.1 cm SL maschio/sesso non determinato; (Ref. 58736)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Body relatively robust, more so in larger individuals. Greatest body depth at dorsal-fin origin. Dorsal profile of head distinctly convex anteriorly, straight to slightly convex from region proximate to vertical through posterior nostril to rear of supraoccipital. Dorsal profile of body straight to slightly convex from rear of head to dorsal-fin origin, straight and posteroventrally slanted along dorsal-fin base, and slightly convex to slightly concave from base of last dorsal-fin ray to caudal peduncle. Dorsal surface of body with transversely obtuse median ridge extending five to six scales anterior of dorsal fin. Dorsal surface of body smoothly rounded transversely posterior of fin. Ventral profile of body more or less gently convex from tip of lower jaw to caudal peduncle. Prepelvic region transversely flattened with obtuse lateral angles and median series of scales. Postpelvic region gently rounded posterior to anus (Ref. 58736).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Scharcansky, A. and C.A.S de Lucena, 2007. Caenotropus schizodon, a new chilodontid fish from the Rio Tapajós drainage, Brazil (Ostariophysi: Characiformes: Chilodontidae). Zootaxa 1557:59-66. (Ref. 58736)
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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Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5664 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00244 - 0.01555), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 2.9 ±0.2 se; based on size and trophs of closest relatives
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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