分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
慈鯛科魚類 (Cichlids) > Pseudocrenilabrinae
Etymology: Haplochromis: Greek, Haploos = single + Greek, chromis = a fish, perhaps a perch (Ref. 45335); gracilifur: Specific name derived from Latin 'gracilis', slender, and 'fur', thief; in reference to its slender body and paedophagous diet, it steals fry from buccal cavities of mouthbrooding cichlids; specific name noun in apposition (Ref. 127594).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
Africa: Lake Edward system (Ref. 127594).
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 127594)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 15; 背的軟條 (總數) : 9 - 10; 臀棘: 3; 臀鰭軟條: 8 - 9; 脊椎骨: 29 - 30. Diagnosis: Haplochromis gracilifur differs from all other known paedophages from Lake Edward by its shorter premaxillary pedicel, 18.1-21.6% of head length vs. 21.6-29.1%, smaller number of lower lateral line scales, 7-9 vs. 9-15, exceptionally 7, and bicuspid outer teeth with long minor cusps (Ref. 127594). It resembles H. molossus and H. taurinus by its rounded jaws and small lachrymal bones; it differs from both by its more slender body, 30.2-34.8% of standard length vs. 33.5-38.6% and 33.9-40.1%, respectively; it is further distinct from H. taurinus by its shorter lower jaws, 42.4-44.7% of head length vs. 44.5-51.3%, and smaller eyes, 29.0-32.3% of head length vs. 32.9-40.2%; from H. molossus by its more slender jaws, 61.9-69.4% of lower jaw length vs. 67.0-87.0%, steeper gape inclination, 40-50° vs. 20-30°, and more gentle snout inclination, 10-20° vs. 45-55° (Ref. 127594). In addition, it has more outer teeth in upper jaw than H. relictidens and fewer than H. paradoxus, 26-35 vs. 16-26 and 36-65, respectively; clearly distinct from both by its smaller lachrymal bones, 13.7-14.3% of head length vs. 15.8-18.4% and 14.7-21.5%, respectively; further separated from H. relictidens by lower jaws rounded, whereas pointed in latter (Ref. 127594). Males of H. gracilifur have bright red flanks with two horizontal stripes vs. different colour patterns in all other paedophages (Ref. 127594).
This species has a paedophagous diet (Ref. 127594).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Vranken, N., M. Van Steenberge and J. Snoeks, 2019. Grasping ecological opportunities: not one but five paedophagous species of Haplochromis (Teleostei: Cichlidae) in the Lake Edward system. Hydrobiologia 832(1):105-134. (Ref. 127594)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
