Ptychochromis insolitus  Stiassny & Sparks, 2006

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Ptychochromis insolitus
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 辐鳍鱼纲 (条鳍鱼) > Perciformes (Perch-likes) 鱸形目 (Perch-likes) > Cichlidae (Cichlids) 麗魚科 (Cichlids) > Ptychochrominae
Etymology: Ptychochromis: Greek, ptyx, = fold + Greek, chromis = a fish, perhaps a perch (Ref. 45335);  insolitus: Name derived from the Latin, insolitus, meaning 'unusual, odd, queer', in reference to the somewhat atypical appearance of the species and the anomalous morphology of the aquarium raised specimens used for the original description (Ref. 57663).

环境 / 气候 / 范围 生态学

; 淡水 居于水底的.   热带

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Africa: Madagascar.
非洲: 马达加斯加.(参考文献 57663)

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 57663)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 13; 背的软条 (总数): 11; 臀棘 3; 臀鳍软条: 8; 脊椎骨: 27. It is distinguished from congeners by a reduced number of precaudal vertebrae (12) and a reduced number of infraorbital elements (5), and also by the presence of a faint midlateral stripe, beginning just posterior to the dorsocaudal margin of the opercle and extending to caudal-fin origin (Ref. 57663). It is a comparatively shallow bodied and laterally compressed Ptychochromis (Ref. 57663). In life, base body coloration is silvery to silvery-golden, particularly below lateral midline; cheek and opercular series silvery; body golden with blackish speckles and blotches above midline, including nape, top of head, and infraorbital series; unpaired fins reddish, particularly distally, or dark gray; pectoral fins pale and reddish; pelvic fins pale reddish and may exhibit some black pigmentation along caudal margin (Ref. 57663). In preservative, ground coloration is pale yellowish-olive, with faint dark stripe present along lateral midline, more pronounced posteriorly; fins hyaline to pale yellowish-olive (Ref. 57663).
它是与一个尾前椎 (12) 的少数量与一个眶下要素 (5) 的少数量的同类区分, 以及藉由有一条模糊的侧面中央的斑纹, 正好开始在鳃盖的 dorsocaudal 边缘后面而且延伸至臀鳍起点.(参考文献 57663) 它是一比较地浅的身体与侧扁的 Ptychochromis.(参考文献 57663) 活着时,基底身体颜色是银色到银色的-金的, 特别地在侧面的中线之下; 颊与鳃盖系列银色的; 身体金的有黑色的小斑点与在中线,包括后颈,头顶与眶下的系列上面的斑块; 不成对的鳍淡红的, 特别地末梢部地, 或深灰色; 胸鰭灰白而淡紅的; 腹鰭灰白的淡紅而且可能展現一些黑色的顏色沿著尾部的邊緣.(參考文獻 57663) 在標本保存狀態下,地面顏色是灰白的淡黃色的-橄欖色, 有模糊的深色斑紋存在的沿著側面的中線, 更明顯的在後部地; 鰭透明的到灰白的淡黃色的-橄欖色.(參考文獻 57663)

生物学特性     字汇 (例如 epibenthic)


Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

非洲: 马达加斯加.(参考文献 57663)

主要参考文献 Upload your references | 参考文献 | 合作者 : Kullander, Sven O. | 合作者

Stiassny, M.L.J. and J.S. Sparks, 2006. Phylogeny and taxonomic revision of the endemic Malagasy genus Ptychochromis (Teleostei: Cichlidae), with the description of five new species and a diagnosis for Katria, new genus. Am. Mus. Novit. 3535:1-55. (Ref. 57663)

世界自然保护联盟红皮书 (Ref. 115185)

  极度濒危 (CR) (B1ab(i,ii,iii,v))

CITES (Ref. 94142)

Not Evaluated

对人类的威胁

  无害处的




人类利用

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.2   ±0.3 se; Based on size and trophs of closest relatives
回复力 (Ref. 69278):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
脆弱性 (Ref. 59153):  Low vulnerability (10 of 100) .