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Characiformes (Characins) >
Anostomidae (Headstanders) > Anostominae
Etymology: Pseudanos: Derived from Greek, pseudes = false (Ref. 45335); winterbottomi: Named in honor of Richard Winterbottom for his significant contributions to anostomine systematics and natural history.
Eponymy: Dr Richard ‘Rick’ Winterbottom (d: 1944) is an evolutionary biologist and ichthyologist who was born in Zambia. [...] (Ref. 128868), visit book page.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
South America: Rio Tapajos drainage in Brazil and throughout Rio Orinoco drainage, including the rios Casiquiare, Cinaruco, San Bartolo and Ventuari.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 15.2 cm SL ذكر/ مختلط الجنس; (Ref. 55429)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
فقرات: 38 - 44. The only member of the subfamily Anostominae with a single longitudinal stripe. It also lacks transverse bars across the dorsum. Resembles P. gracilis but is distinguished by the following characters: a dark horizontal stripe along the lower half of the lateral-line scale row and the upper half of the row adjoining; four branchiostegal rays; two pores on the sensory canal of the nasal bone between its anterior and posterior openings; four pores associated with the sensory canal of infraorbital one and arranged in an approximate square; nearly complete closure of the metapterygoid/quadrate fenestra; absence of a posterior process of the ectopterygoid running ventral to the palatine in lateral view; presence of a dorsal process of the mesopterygoid that wraps around the posterior of the palatine; and a palatine with a high arch and thick, blocklike morphology (Ref. 55429).
Body shape (shape guide): fusiform / normal.
Adults are found in deep and clearwater pool (Ref. 55429). Stomach contents contain sand, woody debris and a fibrous plant material (Ref. 55429). Distinct pairs breed on densely grown weedy places (Ref. 205).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Distinct pairs breed on densely grown weedy places (Ref. 205).
Sidlaukas, B.L. and G.M. dos Santos, 2005. Pseudanos winterbottomi: a new anostomine species (Teleostei: Characiformes: Anostomidae) from Venezuela and Brazil, and comments on its phylogenetic relationships. Copeia 2005(1):109-123. (Ref. 55429)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
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مصادر علي الأنترنت
تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع 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=0.01072 (0.00419 - 0.02740), b=3.04 (2.82 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
2.5 ±0.3 se; based on size and trophs of closest relatives |
المرونه (مرجع 120179) |
عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.). |
ضعف الصيد (Ref. 59153) |
Low to moderate vulnerability (26 of 100). 🛈 |