Klassificering / Namn
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Ancistomus: Greek, agkale, agkalos = hook, something curved + Greek, stoma = mouth.
Taxonomic Remarks
In Ambruster et al., 2015 (Ref. 99824), no characteristics were found to separate Ancistomus spinosissimus from A. micrommatos and A. spiloma, and these may represent the same species.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Tropical
South America: middle and upper rio Tocantins and its tributaries.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 12.7 cm SL hane/ej könsbestämd; (Ref. 49598)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 1; Mjukstrålar i ryggfenan (totalt) : 7; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 4. Number of elongate odontodes on cheek 30-60; absence of dark spots on the ventral surface of head and body; fins and lateral and dorsal plates of head and body with numerous dark dots; dorsal-fin rays I, 7; premaxillary teeth 17-29; absence of small dark spots on upper region of eye; first anal-fin pterygiophore barely exposed, sometimes covered by skin; long and curled odontodes of adult males confined to the upper caudal peduncle region; interorbital width 30.3-35.0% HL (Ref. 49598).
Body shape (shape guide): elongated.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Cardoso, A.R. and P.H.F. Lucinda, 2003. Three new species of Hemiancistrus (Teleostei: Siluriformes: Loricariidae) from the rio Tocantins basin with comments on the genus. Ichthyol. Explor. Freshwat. 14(1):73-84. (Ref. 49598)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01549 (0.00729 - 0.03291), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low to moderate vulnerability (31 of 100). 🛈 |