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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Psalidodon: Greek, psalis, -idos = scissors + Greek, odous = teeth (Ref. 45335).
More on author: Eigenmann.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Subtropical
South America: Iguaçu River basin.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 11.5 cm SL ذكر/ مختلط الجنس; (Ref. 81203)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
أشعه شرجية لينه: 21 - 22. This species is distinguished from its congeners from Rio Iguaçu by the combination of the following characters: narrow third infraorbital, leaving a broad naked area between its border and preopercle corresponding to approximately one third depth of the bone; 5 premaxillary large teeth in the inner series all in a straight line in ventral view; symphysal pair bicuspid; maxillary short in relation to premaxillary, with 1-3 teeth, forming a right angle with premaxillary when mouth is closed; all other premaxillary (both series) teeth and larger (anterior) dentary teeth tricuspid; first branchial arch with 6 gill-rakers in epibranchial and 10 or 11 in lower branch (ceratobranchial + hypobranchial); presence of a vertically elongated humeral dark brown blotch and a horizontally elongated dark caudal brown spot (Ref. 85756).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Terán, G.E., M.F. Benitez and J.M. Mirande, 2020. Opening the Trojan house: phylogeny of Astyanax, two genera and resurrection of Psalidodon (Teleostei: Characidae). Zool. J. Lin. Soc. 190(4):1217-1234. (Ref. 123753)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00671 - 0.02974), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
