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Characiformes (Characins) >
Spintherobolidae (Piquiras)
Etymology: dalmata: From the Portuguese 'dalmata', in reference to the color pattern of the skin of the dogs of the Dalmatian breed which resembles the color of this species. A noun in apposition.
More on authors: Bührnheim, Carvalho, Malabarba & Weitzman.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk; djupintervall 0 - 1 m (Ref. 79887). Tropical
South America: Rio Purus and Rio Madeira basins in Brazil.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 2.0 cm SL hane/ej könsbestämd; (Ref. 79887)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 11; Mjukstrålar i analfenan: 11. The presence of three conspicuous black blotches on the base of the dorsal, anal, and caudal fins separates this species from all characid species. Distinguished from all other species of the Cheirodontinae by two uniquely derived characters, the anteriormost proximal radial of the anal fin with an anteriorly extended lamina entering the abdominal cavity, between the distal portions of the 12th to 14th pleural ribs and by the extremely elongate caudal peduncle 27.3-30.2% SL. Can be further diagnosed by having ventral procurrent caudal-fin rays 7-9 and hemal spines of one, two or sometimes three posterior caudal vertebrae directly articulating with the ventral procurrent caudal-fin rays (Ref. 79887).
Body shape (shape guide): elongated.
The type locality has slow current, muddy substratum, and silty, turbid water with abundant riparian vegetation and with maximum depth of 1.3 m. Also collected in a perceptible current with some submerged vegetation, transparent water, sandy and muddy substratum and riparian vegetation (Ref. 79887).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Buhrmheim, C.M., T.P. Carvalho, L.R. Malabarba and S.H. Weitzman, 2008. A new genus and species of characid fish from the Amazon basin- the recognition of a relictual lineage of a characid fishes (Ostariophysi: Cheirodontinae: Cheirodontini). Neotrop. Ichthyol. 6(4):663-678. (Ref. 79887)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Harmless
Mänskliga användningsområden
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Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 1.0312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: 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).
Trofisk nivå (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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