分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
麗魚科 (Cichlids) > Pseudocrenilabrinae
Etymology: Placidochromis: Latin, placidus = of peaceful or tranquile appearance + Greek, chromis = a fish, perhaps a perch (Ref. 45335); koningsi: Named in honor of Ad Konings, a well-known author and publisher on cichlids, with particular interest in the Lake Malawi (Konings, 1995; 2001) and Lake Tanganyika cichlid faunas (Ref. 55898).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; 深度上下限 119 - 123 m (Ref. 55898). 热带
Africa: endemic to Lake Malawi, only known from Nkhotakota in Malawi (Ref. 55898).
非洲: 在马拉威的马拉威湖。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.7 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55898)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 14 - 15; 背的软条 (总数) : 10 - 11; 臀棘: 3; 臀鳍软条: 9 - 10. Diagnosis: head length 36.6-38.1 %SL; snout length 33.5-34.5 % head length; lower jaw length 33.5-34.5 % head length; outer oral teeth unicuspid; no inner oral tooth rows; premaxillary pedicel length 30.6-30.6 % head length; cheek depth 23.7-25.1 % head length; lachrymal depth 21.6-22.0 % head length; orbital width 41.5-42.9 % head width; lower pharyngeal dentition enlarged and molariform; body depth 38.8-39.6 %SL (Ref. 55898).
鉴别: 头长 36.6-38.1% SL; 吻的长度 33.5-34.5% 头长; 下颌长度 33.5-34.5% 头长; 外部的口部齿单犬齿的; 没有内部的口部齿列; 上颌骨前的茎长度 30.6-30.6% 头长; 颊的深度 23.7-25.1% 头长; 泪骨深度 21.6-22.0% 头长; 眼窝的宽度 41.5-42.9% 头部宽度; 低的咽生齿增大了与臼齿型; 体高 38.8-39.6% SL.(参考文献 55898)
描述: 身体背部轮廓更多的强烈弯曲超过腹的身体轮廓; 吻中等长度的, 尖的但是不是有角; 口裂於大約 20個 ° 傾向到水平的; 延伸至的顎骨或正好超過垂直的在眼的前緣; 外部的口部齒單犬齒的﹐長且細的, 藉由後彎的頂端; 沒有內部的口部齒; 在頰上的 3個成列的鱗片; 眼相當大的; 碰觸頭部背面輪廓的眼的上緣; 在外形上的低咽的頜正常; 中央的在後部的咽齒增大了與臼齒型; 在下肢上的鰓耙非常短與矮胖的.(參考文獻 55898)
體色 保護: 雌性: 身體淺褐色; 在背鰭之下的 6個模糊的縱帶, 不延伸到腹面; 背鰭白灰色具有深色的末端; 模糊的灰色斜紋軟的之上背部的; 所有的其他鰭灰白的淡黃色的.(參考文獻 55898)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
非洲: 在马拉威的马拉威湖。
Hanssens, M., 2004. The deep-water Placidochromis species. p. 104-197. In J. Snoeks (ed.) The cichlid diversity of Lake Malawi/Nyasa/Niassa: identification, distribution and taxonomy. Cichlid Press, El Paso, USA. (Ref. 55898)
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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=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
