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Siluriformes (Catfishes) >
Mochokidae (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
More on author: Boulenger.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة قاعية التغذية و المعيشة; pH range: 6.0 - 7.5; dH range: ? - 25. Tropical; 21°C - 24°C (Ref. 2060); 35°N - 4°N
Africa: basins of Nile (Ref. 3202, 28714), Niger (including the Benue), Volta and Chad (Ref. 57223).
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 26.0 cm SL ذكر/ مختلط الجنس; (Ref. 31256)
الأشواك الظهرية (المجموع) : 1; شوكة شرجية: 0. Diagnosis: gill slits not extending ventrally beyond pectoral-fin insertions; eye large, at least 24% of head length and 33% of head width; post-orbital length at least 60% of snout length; maxillary barbels slightly longer than head, unbranched, without tubercles but with a light, well visible, broad basal membrane; outer mandibular barbels with numerous, tuberculate ramifications; mandibular teeth long, numbering 16-24 (20 in the holotype); dorsal-fin spine smooth anteriorly; denticulations of pectoral-fin spines finer on outer than on inner margin; first branched dorsal-fin ray prolonged into a very long filament that may reach to caudal-fin base; humeral process poorly developed, granulose, rounded posteriorly and very slightly keeled, at least on anterior part of ventral margin; adipose fin truncate posteriorly and distinctly separated from rayed dorsal fin; outer margins of caudal-fin lobes black-edged; body covered with large spots (Ref. 57223).
Coloration: back brownish, sides yellowish, belly lighter; body covered with black spots, except on belly; dorsal filament as well as outer rays of caudal-fin lobes black; young individuals nearly same colour pattern as adults (Ref. 57223).
Body shape (shape guide): elongated.
Maximum SL was recorded at 22.3 cm, max. TL at 27.5 cm (Ref. 57223). Oviparous (Ref. 205).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).
Paugy, D. and T.R. Roberts, 2003. Mochokidae. p. 195-268 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57223)
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) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01122 (0.00624 - 0.02017), b=2.98 (2.83 - 3.13), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
المرونه (مرجع 120179) |
وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.). |
ضعف الصيد (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |