分類 / 名稱
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) > Ptychochrominae
Etymology: Ptychochromoides: Greek, ptyx, ptychos = fold + Greek, chromis = a fish, perhaps a perch (Ref. 45335); vondrozo: Named for the nearest village to the type locality that is depicted on readily available maps; the epithet vondrozo is used as a noun in apposition (Ref. 39915).
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 大洋性. 熱帶
Africa: Mananara du Sud River basin, in the southeastern highlands of Madagascar (Ref. 39915).
非洲: Mananara 流域, 東南方的馬達加斯加。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 20.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 39915)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 13 - 15; 背的軟條 (總數) : 10 - 13; 臀棘: 3; 臀鰭軟條: 9 - 10; 脊椎骨: 29 - 31. Diagnosis: Ptychochromoides vondrozo is distinguished from congeners by the lack of a prominent adipose occipital hump, even in large adults and regardless of sex (Ref. 39915). In life, Ptychochromoides vondrozo is diagnosed by a vivid golden-olive ground colouration in combination with an irregular, brownish to black, blotchy and speckled lateral pigmentation pattern (Ref. 39915). It is further distinguished from its sister taxon, Ptychochromoides betsileanus by possession of a shallower caudal peduncle, 12.9-14.8% of standard length vs. 15.8-18.1%; a noticeably convex lateral snout outline with conspicuous premaxillary pedicel prominence; and a higher modal vertebral count, 30 vs. 29 (Ref. 39915). It is distinguished from Ptychochromoides katria by a larger adult size, exceeding 200 mm standard length; a mottled and blotchy overall pigmentation pattern vs. solid golden-brown base body colouration, with two wide, black vertical bars on the flanks; a greater number of ceratobranchial gill rakers, 10-12 vs. 8-9; the absence of a hypertrophied cephalic latero-sensory canal system on the lower jaw, preopercle, and neurocranium; and the presence of cycloid scales on the chest and belly vs. cycloid scales restricted to the extreme antero-ventral margin of the chest (Ref. 39915).
Body shape (shape guide): fusiform / normal.
與同類區分的一個 Ptychochromoides 藉由沒有一個突出的脂肪後頭骨隆起。 (參考文獻 39915) 尾梗很淺, 狹窄的與延長 (12.9-14.8% SL).(參考文獻 39915) 活著時, 一生動的金-組合的橄欖色土地的顏色有一個不規則的﹐褐色或黑色的﹐和到處有污點而有斑點的側面顏色圖案.(參考文獻 39915)
Found in the deep, seasonally turbid, and moderate to fast-flowing rivers in the immediate vicinity of Vevembe (Ref. 39915). These habitats are characterized by a relatively sandy substrate, with regions of small to large rocks and boulders, where there are areas of relatively still water and deep pools, in addition to swift flowing water (Ref. 39915). Specimens were captured with hook and line using Odonata larvae (Ref. 39915).
在 Vevembe 的緊鄰區域中已知來自深的﹐季節性混濁﹐與和緩到快速-流動的河了。 它出現它被侷限於較大的河與他們的支流。 這些棲息地特徵為一相當砂質底部, 藉由小型到大型岩石與大圓石的區域.(參考文獻 39915) 標本被用使用蜻蛉仔魚的一支釣捕獲。 (參考文獻 39915)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: Mananara 流域, 東南方的馬達加斯加。
Sparks, J.S. and P.N. Reinthal, 2001. A new species of Ptychochromoides from southeastern Madagascar (Teleostei: Cichlidae), with comments on the monophyly and relationships of the ptychochromine cichlids. Ichthyol. Explor. Freshwat. 12(2):115-132. (Ref. 39915)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2)
瀕危 (EN) (B1ab(i,ii,iii)); Date assessed: 14 May 2016
人類使用
漁業: 沒有興趣
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基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (15 of 100).
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