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); macroceps: Derived from the Greek "makros" = big and the Latin suffix "-ceps" = head, referring to its large head (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 123 - 125 m (Ref. 55898). 热带
Africa: endemic to Lake Malawi, only known from Lukoma Bay in Tanzania (Ref. 55898).
非洲: Lukoma 海湾, 在坦尚尼亚的马拉威湖。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 5.3 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) : 15; 背的软条 (总数) : 11; 臀棘: 3; 臀鳍软条: 10. Diagnosis: lachrymal 22.2 % head length; snout 30.2 % head length; eye diameter 37.3 % head length; large head, 42.5 %SL; dorsal fin occupies a rather posterior position, with predorsal distance 45.3 %SL (Ref. 55898).
鉴别: 泪骨 22.2% 头长; 吻 30.2% 头长; 眼直径 37.3% 头长; 大的头部, 42.5% SL; 背鳍占领一个相当在后部的位置, 藉由前背的距离 45.3% SL 。 (参考文献 55898)
描述: 小的且深-身体了种; 身体背部轮廓凸状, 腹面身体轮廓很直; 吻短与有角的; 下颌相当大的; 口裂于大约 25个 ° 倾向到水平的; 颚骨延伸超过垂直的在眼窝的前缘; 混合二头齿的外部口部的齿, 单犬齿的而且肩负了二头齿; 双颚内的单一内部的齿列; 内部的齿单犬齿的或肩负了二头齿; 在頰上的 3個成列的鱗片; 眼大的, 伸出略超過頭部背面輪廓; 低的咽頜正常; 大多數的咽齒細而細長的, 一些增大但是沒有臼齒型齒沿著咽骨的中心線; 在下肢上的鰓耙短與細長的.(參考文獻 55898)
體色 保護: 身體灰白的黃褐色的; 在背鰭之下的六個灰白的縱帶; 所有的鰭灰白的淡黃色的; 在背鰭上的小的深色垂部; 對腹鰭的深色前緣.(參考文獻 55898)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: Lukoma 海湾, 在坦尚尼亚的马拉威湖。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
人类利用
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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=0.01862 (0.00830 - 0.04177), b=3.01 (2.82 - 3.20), 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).
