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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Creagrutinae
Etymology: Creagrutus: Greek, kreagreytos, -os, -on = to tear, to rip up the flesh (Ref. 45335); varii: Named for Richard Vari of the Smithsonian Institution in recognition of his contributions to the knowledge of South American fishes, especially on Creagrutus systematics.
Eponymy: Dr Richard Peter Vari (1949–2016) was a curator of fish at the Smithsonian. [...] (Ref. 128868), visit book page.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
South America: upper Rio Paranaiba basin in Brazil.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 4.2 cm SL ذكر/ مختلط الجنس; (Ref. 52412)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
فقرات: 37 - 38. Distinguished from congeners in having a maxilla with a relatively slender anterior process and a posterior portion transversely compressed; a maxilla which lacks a distinct flexion in the region where it extends past the posterior limit of the premaxilla; a primordial ligament that is relatively flat transversely and attaches to the posteromedial process of the ascending process of the maxilla; the mesopterygoid and metapterygoid overlapping along their area of contact; a quadrate without a variably developed vertical ridge or process extending dorsally from the main body of the quadrate in, and posterior to, the region where the posterodorsal process of the quadrate contacts the anteroventral process of metapterygoid; and presence of the temporal foramen. Differs further in having two rows of teeth on the premaxilla, with two conical teeth in the outer row (Ref. 52412).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Ribeiro, A.C., R.C. Benine and C.A. Figueiredo, 2004. A new species of Creagrutus Günther (Teleostei: Ostariophysi: Characiformes) from the upper Rio Paraná basin, central Brazil. J. Fish Biol. 64(2):597-611. (Ref. 52412)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
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مؤشر التنوع الشُعبي الوراثي (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00401 - 0.01809), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 2.6 ±0.1 se; based on size and trophs of closest relatives
ضعف الصيد (Ref.
59153): Low vulnerability (10 of 100).
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