分类 / Names
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Teleostei >
Cichliformes (Cichlids, convict blennies)
鱸形目 (Cichlids, convict blennies) >
Cichlidae (Cichlids)
麗魚科 (Cichlids) > Pseudocrenilabrinae
Etymology: Hemitaeniochromis: Greek, hemi = half + Latin, taenia, -ae = strip + Greek, chromis = a fish, perhaps a perch (Ref. 45335); brachyrhynchus: Latinized from the Greek adjective βραχύσ, short, and noun ρύγχοσ, snout, in reference to the abbreviated preocular region of the head; brachyrhynchus is a noun in apposition (Ref. 91204).
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 大洋性.
Africa: Lake Malawi (Ref. 91204).
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 124 cm SL 雄鱼/尚未辨别雌雄; (Ref. 91204)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 17; 背的软条 (总数) : 10; 臀棘: 3; 臀鳍软条: 9. Diagnosis: Hemitaeniochromis brachyrhynchus is readily distinguished from its formal congener H. urotaenia, by its narrow lacrimal bone whose width, at the midpoint of the bone, is one-third of the orbit length, vs. nearly equal to the orbit length in H. urotaenia; by its snout being shorter than the orbit length, vs. longer in H. urotaenia; by its much larger eyes, the orbit length being about 36-38% of head length, vs. 22-28% in H. urotaenia; by its shorter lower jaw which is about 39-41% of head length, vs. 45-51% in H. urotaenia; and by its melanin pattern, which is composed of spots and line segments that are less well-defined than those of H. urotaenia (Ref. 91204). The narrow lacrimal and large eyes also distinguish H. brachyrhynchus from all other species that have sometimes been placed in Hemitaeniochromis (Ref. 91204).
Body shape (shape guide): fusiform / normal.
The distinctive lower-jaw teeth, with their outwardly and anteriorly angled crowns are similar to those of other haplochromine cichlids that have a paedophagous diet (Ref. 91204). The conservation status is unknown; it may normally inhabit deeper water than has generally been sampled over rocky substrates; and the widely separated localities of the two type specimens at least demonstrate that the species is not restricted to a single circumscribed area (Ref. 91204).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oliver, M.K., 2012. Hemitaenichromis brachyrhynchus, a new species of cichlid fish from Lake Malaŵi, with comments on some other supposed members of the genus (Teleostei: Cichlidae). Zootaxa 3410:35-50. (Ref. 91204)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
人类利用
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Estimates based on models
Phylogenetic diversity index (参考文献
82804): PD
50 = 0.7500 [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 (参考文献
69278): 3.8 ±0.5 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 非常低的, 最小族群倍增时间超过14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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