分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Pleuronectiformes (Flatfishes)
鰈形目 (Flatfishes) >
Cynoglossidae (Tonguefishes)
舌鰨科 (Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335); monostigmus: Name from the Greek word 'manos' (= one) and 'stigma' (= spot), referring to the single, conspicuous, black spot on the anteroventral region of the ocular side of the abdomen.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 65 - 110 m (Ref. 57441). 溫帶
Western Indian Ocean: South Africa.
西印度洋: 南非。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 5.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 57441)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 86; 臀鰭軟條: 73 - 74; 脊椎骨: 48. This species is distinguished by having an irregular, conspicuous, dark spot overlying the anteroventral ocular-side body cavity; a 1-2-2-2-2 ID pattern; caudal-fin rays 14; D 86; A 73-74; vertebrae, abdominal 9 (3 + 6), total 48; hypurals 5; longitudinal scale rows 92; transverse scale rows 36-38; scale rows on the head posterior to lower orbit 18-19; body deep (BD = 28.8-32.4% of HL); preanal length short (PAL = 21.3-25.5% of SL); upper head lobe much wider than lower lobe; head moderately short (HL = 18.0-20.2% of SL), with head length much shorter than head width (HW/HL = 1.38-1.42); postorbital length long (POL = 75.8-79.4% of HL); snout short (SNL = 13.6-14.8% of HL; SNL/ED = 1.08-1.25), rounded to obliquely blunt anteriorly; dorsal-fin origin at vertical at anterior margin of upper eye; predorsal length short (PDL= 16.4-19.3% of HL); eyes equal in position (anterior margin of upper eye equal with anterior margin of lower eye), or slightly subequal (with anterior margin of upper eye anterior to that of lower eye); no fleshy ridge on ocular-side lower jaw. Colouration: ocular-side pigmentation yellowish-white with numerous freckles along bases of dorsal- and anal-fin rays; blind-side pigmentation uniformly white; peritoneum bluish-black (Ref. 126065) .
鑑別: 區別的特徵為有一個過度地前腹的有眼睛的一邊體腔的不規則的﹐顯著的﹐和深色的斑點; 1-2-2-2-2 身份證圖案; 尾鰭鰭條 14; 背鰭鰭條 86; 臀鰭棘條 73-74; 總脊椎骨 48; 鈍地圓形到呈方形的吻; 小的眼 (100-138 在第一千 HL) 有小的瞳孔 (瞳孔直徑/眼直徑 28-32%); 有眼睛的一邊均勻黃白色有很多的﹐比較深色的﹐和紅褐色的雀斑; 沒有眼睛的一邊均勻黃白色; 黑色的腹膜 (只有在後部的區域); 而且沒有顯著的斑點或假眼斑的背鰭與臀鰭.(參考文獻 57441)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西印度洋: 南非。
Munroe, T.A., 2006. New western Indian Ocean tonguefish (Pleuronectiformes: Cynoglossidae, Symphurus). Copeia 2006(2):230-234. (Ref. 57441)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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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=0.01072 (0.00507 - 0.02267), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
