分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
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 authors: Poll & Stewart.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
Africa: endemic to the Luongo River (Luapula affluent, upper Congo River basin) in Zambia (Ref. 89001).
非洲: Luongo 河， Luapula 支流，剛果河流域 (尚比亞).
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 4.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 89001)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 11 - 12; 臀棘: 0; 臀鳍软条: 10. Diagnosis: body depth 18.7-26.1% standard length (SL); head length 16.8-20% SL; distance tip of snout to dorsal fin origin 53-60% SL (Ref. 2970, 89001). Distance dorsal fin origin to caudal fin base 43-51% SL (Ref. 89001). Snout length 30-35% head length (HL) (Ref. 2970, 89001), 109.5-138% eye diameter (ED) (Ref. 2970). Eye diameter 23.9-28% HL (Ref. 2970, 89001). Interorbital distance 120-160% ED; preorbital distance 47.6-65% ED; pectoral fin length 12.9-16.1% SL (Ref. 2970). Eyes lateral; opercular organ (present only in males) larger than eye; dorsal fin origin slightly behind a vertical through the pelvic fin base; pectoral fins very short, same length as the pelvic fins; distance between pelvic fin base and anal fin larger than anal fin-caudal fin base distance; scales relatively large; body yellowish, with 3 longitudinale bands: one dorsal, one mediolateral which is split up anteriorly by the paler lateral line, and a ventral band which is shorter; bands well developed in males, but in females usually more or less broken up in irregular spots, especially the dorsal band, while the ventral band is mostly absent; fins greyish; head marbled and spotted irregularly (Ref. 89001).
Description:
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.).
Epibenthic algae scraper (Ref. 27609). Maximum TL was recorded at 5.5 cm (Ref. 89001).
最大体长TL记录为 4.8 公分。 (参考文献 3565)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
非洲: Luongo 河， Luapula 支流，剛果河流域 (尚比亞).
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)
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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).
