分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Amphiliidae (Loach catfishes) > Amphiliinae
Etymology: Amphilius: Greek, amphi = on both sides + Greek, leios = fat.
Eponymy: Dr Paul Krefft (1872–1945) was a German physician and herpetologist at the Stuttgart Museum. He made expeditions to German East Africa, where he collected the catfish holotype. He wrote: Das Terrarium (1908). (Ref. 128868), visit book page.
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的.
Africa: Galana River basin in Kenya (Ref. 85045); Sigi River, Pangani River and Lake Jipe basins in Tanzania (Ref. 85045).
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 20.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 85045)
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) : 6 - 7; 臀棘: 0; 臀鳍软条: 8 - 10. Diagnosis: Amphilius krefftii is distinguished from A. chalei, A. grandis, A. athiensis, and A. uranoscopus by its emarginate caudal fin, vs. forked, and from A. grandis and A. athiensis by the presence of distinct pale patches at the origin and insertion of the dorsal fin; it also differs from A. chalei, A. athiensis, A. grandis, and A. uranoscopus by having a short body with usually 36 vertebrae, vs. elongate body with 37-40 vertebrae; it also differs from A. cryptobullatus, A. athiensis, and A. uranoscopus by the absence of dark marking on the body, vs. body mottled in A. cryptobullatus, finely spotted in A. athiensis and with diffuse black stripe along side in A. uranoscopus; it also differs from A. athiensis by the absence of spots on the fins, vs. fins heavily spotted; it also differs from A. chalei by having a deeper body, body depth at anus 11.1-16.5% of standard length vs. 8.9-10.8%, and a deeper caudal peduncle, caudal peduncle depth 10.2-13.5% of standard length vs. 7.1-9.7%; it also differs from A. cryptobullatus by having normally developed bilateral bony swimbladder capsules, vs. bilateral bony swimbladder capsules extremely large (Ref. 85045).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Thomson, A.W. and L.M. Page, 2010. Taxonomic revision of the Amphilius uranoscopus group (Teleostei: Siluriformes) in Kenya, with the description of a new species from the Athi River. Bull. Flor. Mus. Nat. Hist. 49(2):45-66. (Ref. 85045)
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
