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Gonorynchiformes (Milkfishes) >
Kneriidae (Shellears)
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335).
More on author: Poll.
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
Africa: Munte River system (Lufira River tributary, upper Lualaba drainage) in Democratic Republic of the Congo (Ref. 2970, 45434).
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 4.8 cm SL ذكر/ مختلط الجنس; (Ref. 2970)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 0; الأشعة الظهرية الناعمة (المجموع) : 11; شوكة شرجية: 0; أشعه شرجية لينه: 10; فقرات: 41. Diagnosis: body depth 18-23.2% of standard length (SL); head length 20.3-24.3% SL; snout rounded, wider than long, 26.1-31.5% head length, 94.4-104.3% eye diameter (ED); eye diameter 26.1-30.2% head length; interorbital distance 100-117.4% ED; preorbital distance 38.9-47.8% ED; mouth ventral, wide; lower lip with weakly developed cutting edge; opercular apparatus (only well dveloped in males) consisting of an opercular suction disc followed by a striated, moderately developed postopercular part with about 12 ridges; dorsal and anal fins with 3 unbranched rays; dorsal fin positioned about 0.9-1.1 times closer to tip of snout than to caudal fin origin, inserted at about the same level as pelvic fins; anal fin about halfway pelvic fins and caudal fin origin; pectoral and pelvic fins with a single unbranched ray; pectoral fin 17.3-19.7% SL; body yellowish, dorsal surfaces darker, brownish; dark lateral band not very distinct (Ref. 2970).
Remark: note that the first column in the comparative table in Ref. 2970 (p. 41) contains the morphometrics for K. katangae and the second for K. paucisquamata, contrarily to what is mentioned above the respective columns (T. Musschoot, pers. comm.).
Maximum TL was recorded at 5.5 cm (Ref. 2970).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Poll, M., 1984. Kneriidae. p. 129-133. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3565)
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 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
