Taxonomic Remarks
Redescription and relationships in Weitzman & Malabarba (1999).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique. Tropical
South America: headwaters of the Tietê River basin in Brazil.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 6.1 cm SL mâle / non sexé; (Ref. 32783); 6.1 cm SL (female)
Rayons mous dorsaux (Total) : 11; Rayons mous anaux: 12 - 13; Vertèbres: 35 - 36. The eyes of S. papilliferus (18.4-26.0% HL) are the smallest of the four species of Spintherobolus; the caudal peduncle length is the longest, being 23.8-24.6% SL in males and 21.3-27.0% SL in females; the anal-fin rays of adult males are not expanded in a sagittal plane; segments of anal-fin rays of adult males are not fused; an anterior extension of the proximal end of the lepidotrichia of the anal-fin rays of males is absent.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Weitzman, S.H. and L.R. Malabarba, 1999. Systematics of Spintherobolus (Teleostei: Characidae: Cheirodontinae) from eastern Brazil. Ichthyol. Explor. Freshwat. 10(1):1-43. (Ref. 32783)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menacé (EN) (B1ab(ii,iii,iv)); Date assessed: 18 May 2022
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5938 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |