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俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Malapteruridae (Electric catfishes)
Etymology: Malapterurus: Greek, mala = a lot of + Greek, pteron = fin + Greek, oura = tail (Ref. 45335); beninensis: The specific epithet is geographic, in general reference to southern Nigeria, where the types originated (Ref. 44050).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
Africa: coastal plain of West and Central Africa from the lower Volta River (Ghana) to the Chiloango system (Angola and Congo DR)(Ref. 44050, 57130, 81645), and on the island of Fernando Po (Ref. 44050).
非洲: 分布沿着来自下面的佛塔河 (迦纳) 的西非与中非的海岸平原到 Shiloango 系统 (安哥拉与刚果医生), 与在 Fernando 波河的岛上.(参考文献 44050)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 22.3 cm SL 雄鱼/尚未辨别雌雄; (Ref. 34006)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 臀棘: 0; 臀鳍软条: 8 - 11; 脊椎骨: 33 - 38. Diagnosis: body cylindrical; tooth patches narrow; vertically oriented pectoral fins, placed near body mid-depth; 6-7 branched caudal-fin rays; pectoral-fin rays usually 8, rarely 7 or 9; 34-38 vertebrae; eyes relatively small, interorbital space relatively broad; caudal saddle and bar pattern quite distinct in juveniles and young and usually apparent in adults (Ref. 44050), but often subdued (Ref. 81645). Dorsum and flank nearly always spotted, sometimes extensively (Ref. 44050, 81645). Commonly 10-15 gill rakers on first arch (total range 4-22)(Ref. 44050). Caudal saddle and anal-fin pigmentation not continuous (Ref. 44050, 81645). Venter often dusky, occasionally lightly spotted (Ref. 81645).
鉴别: 身体圆筒形的; 牙齿区块狭窄的; 垂直导向的胸鳍, 放置在身体的附近在-之中深度; 6-7 分枝尾鳍鳍条; 胸鳍鳍条通常 8, 很少地 7 或 9; 34-38个脊椎骨; 眼相当小的, 眼间隔相当宽的; 尾部的鞍状斑与横带图案相当明显特征是稚鱼与幼鱼与通常明显的当成鱼时; 背面与侧面几乎总是有斑点的, 有时广泛地; 通常在第一鳃弓上的 10-15 鳃耙;(总数范围 4-22) 不连续的尾部的鞍状斑与臀鳍颜色.(参考文献 44050)
描述: 身体典型地略微比较宽的向头部; 头部深的而且圆筒形的; 顎平坦的, 或下頜只些微地突出的; 13-17個腹部的脊椎骨; 19-23個尾部的脊椎骨; 18-19個尾鰭鰭條 (安排: ii-iii-6-7-ii-iii, abberantly 7個背部的分支條).(參考文獻 44050)
體色 頭部與身體 bicolor, 灰色的, 藉由他們的背部與側面表面通常有斑點的; 斑點小的, 通常沒有大於 2-3 倍眼直徑, 很少地有班點位於任何的鰭之上; 尾部的鞍狀斑與橫帶圖案發展良好的, 雖然時常壓制當成魚時; 寬的尾部橫帶圓的或楔形的, 突出的位在前的進入灰白的間隙之內以及印記尾鰭基底; 灰白的間隙通常顏色淡的超過側面或背面底色; 尾部的可變﹐深色的或模糊的, 狹窄的或相當寬的, 通常有一個不規則的前緣; 它可能越過身體在-之中深度, 但是清楚地停止臀鰭基底的短; 鞍狀斑與橫帶圖案以身體大小在定義減少, 藉由更戲劇性褪色的鞍狀斑; 胸鰭時常暗色; 腹鰭通常清澈的; 前半部的脂鰭有顯著的鞍狀斑了,後半段通常與灰白的間隙相配; 臀鰭運送一條暗色的斑紋,具有一個灰白的末梢部的邊緣,更多明顯特徵是稚魚與幼魚; 臀鰭有時暗色的整體與側面底色相配; 末梢部地尾鰭通常有深色的橫帶, 有清澈的末梢部的邊緣與灰白的基部新月; 尾鰭有時暗色的整體, 與側面底色相配, 有小的深色橫帶, 灰白的邊緣或基部的新月指證.(參考文獻 44050)
Mostly occurs in lowland habitats (Ref. 81645).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
非洲: 分布沿着来自下面的佛塔河 (迦纳) 的西非与中非的海岸平原到 Shiloango 系统 (安哥拉与刚果医生), 与在 Fernando 波河的岛上.(参考文献 44050)
Norris, S.M., 2002. A revision of the African electric catfishes, family Malapteruridae (Teleostei, Siluriformes), with erection of a new genus and descriptions of fourteen new species, and an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 289:1-155. (Ref. 44050)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00451 - 0.02792), b=3.00 (2.79 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
