分类 / Names
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); occidentalis: From the Latin "occidentalis" = west, in reference to the far west African distribution (Ref. 44050).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 热带
Africa: (middle) Gambia and Géba Rivers in Gambia and Guinea-Bissau respectively (Ref. 44050, 57130).
非洲: 甘比亚与 Geba 河 (甘比亚与几内亚比绍).(参考文献 44050)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 32.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 57130)
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) : 0; 臀棘: 0; 臀鳍软条: 9 - 11; 脊椎骨: 36 - 38. Diagnosis: tooth patches narrow; vertically based pectoral fin positioned near body mid-depth; 7-8 branched caudal-fin rays; eye relatively large; interorbital space relatively narrow; 8-9 pectoral-fin rays; 36-38 vertebrae; young tan or brown; caudal saddle and bar pattern present in juveniles but poorly developed in adults; flank and dorsum marked with small spots but no large blotches; caudal fin not heavily marked with spots or blotches (Ref. 44050).
鉴别: 牙齿区块狭窄的; 垂直地基础的胸鳍放置在身体的附近在-之中深度; 7-8 分枝尾鳍鳍条; 眼相当大的; 眼间隔相当狭窄的; 8-9个胸鳍鳍条; 36-38个脊椎骨; 幼鱼黄褐色的或褐色; 尾部的鞍状斑与横带图案出现在稚鱼但是发展不良的当成鱼时; 侧面与背面有显著的小斑点了但是没有大的斑块; 尾鳍不有非常显著的斑点或斑块。 (参考文献 44050)
描述: 身体与头部圆筒形的; 15-17个腹部的脊椎骨; 21个尾部的脊椎骨; 19个尾鳍鳍条 (安排: ii-7-8-ii).(参考文献 44050)
體色 在蔭涼處中的頭部與身體雙色的黃褐色或灰色的; 側面與背面有顯著的分散小斑點了, 通常不延伸到有鰭條的鰭; 脂鰭有顏色的當背面; 胸鰭與腹鰭可能是暗色的當成魚時; 臀鰭通常深色的具有一個灰白的末梢部的邊緣; 在較年輕的標本中尾鰭有灰白的基部新月; 大的成魚可能顯示少量的一條尾部的橫帶與灰白的間隙; 稚魚顯示尾鰭鞍狀斑與橫帶圖案: 尾部的橫帶深色的, 鞍狀斑很清晰但是模糊的; 尾鰭暗著色的 (比側面基底顏色顏色深一點) 有灰白的末梢部的邊緣與寬的灰白基部的新月.(參考文獻 44050)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 甘比亚与 Geba 河 (甘比亚与几内亚比绍).(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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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=0.01175 (0.00474 - 0.02910), 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 to moderate vulnerability (29 of 100).
