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Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Metynnis: Greek, meta = with, after + Greek, ynnis, -eos = ploughshare (Ref. 45335).
More on authors: Zarske & Géry.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة محيطي. Tropical
South America: Venezuela. Mouth of rio Casiquiare, rio Negro.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 6.7 cm SL ذكر/ مختلط الجنس; (Ref. 79633)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
The species is closely related to Metynnis hypsauchen (Müller & Troschel, 1844) according to 1. high number of gill-rakers, 2. long adipose fin, 3. deep body, 4. short head and 5. long occipitale and is clearly defined because of 1. the high number of serrae (36-37 vs. 27-32 of M. hypsauchen), 2. the small scales (91-93 vs. about 75-83), 3. uniformly silver colouration and 4. the extremely elongated dorsal fin and anal fin (Ref. 79633).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Zarske, A. and J. Géry, 2008. Revision der neotypischen Gattung Metynnis Cope, 1878. II Beschreibung zweier neuer Arten und zum status von Metynnis goeldii Eigenmann, 1903 (Teleostei: Characiformes: Serrasalmidae). Vertebrate Zoology 58(2):173-196. (Ref. 79633)
IUCN Red List Status (Ref. 130435: Version 2024-1)
استخدامات بشرية
أدوات
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