分類 / 名稱
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Teleostei >
Acropomatiformes (Oceanic basses)
鱸形目 (Oceanic basses) >
Symphysanodontidae (Slopefishes)
癒齒鯛科 (Slopefishes)
Etymology: Symphysanodon: Greek, syn, symphysis = grown together + Greek, physis = growth body form + Greek, odous = teeth; related to few teeth which are located over the area where the two jaws meet (Ref. 45335); mona: Named mona for its type locality (Mona Passage); feminine, noun in apposition to Symphysanodon.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 pelagic-oceanic; 深度上下限 ? - 384 m (Ref. 54833). 熱帶
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Western Central Atlantic: known only from the type locality: Mona Passage off the west coast of Puerto Rico.
中西大西洋: 已知只來自模式標本產地了: 莫娜通道外海的波多黎各的西岸。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 8.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 54833)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 9; 背的軟條 (總數) : 10; 臀棘: 3; 臀鰭軟條: 7; 脊椎骨: 25. The species differs from all other species of the genus in having fewer gillrakers on first arch (4 or 5 + 19-21 = 24 or 25 total vs. 8-14 + 20-29 = 28-42 total). In addition, it differs from other Atlantic species in having a ventral branch of obliquus dorsalis 3 muscle (vs. its absence in the other two species) and in having a posteriorly projecting extension of the cartilaginous lateral end of ceratobranchial 4 (vs. its absence in the other two species; S. berryi has a small accessory cartilage associated with the lateral end of ceratobranchial 4; the specimen of S. octoactinus examined may have had a very small accessory cartilage that was lost during dissection).
Body shape (shape guide): elongated.
此魚種有別於所有的其他種的本屬在第一鰓弓 (4 或 5+19-21=24 或 25 總數和 814+ 的 20-29= 比較 28-42 總數) 上有較少的鰓耙. 除此之外，它在有一個方面與其他大西洋的種不同 obliquus dorsalis 的腹分支 3束肌肉 (vs. 它的缺乏在另一個二個種方面) 與在有一個方面角鰓骨 4 的軟骨側面末端的在後部突出延長 (vs. 它的缺乏在另一個二個種方面; S. berryi 有一個被伴隨著角鰓骨 4 的側面末端的小的附屬軟骨組織; 可能被調查的 S. octoactinus 的標本有了在解剖的時候被失去的一個非常小的附屬軟骨組織).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
中西大西洋: 已知只來自模式標本產地了: 莫娜通道外海的波多黎各的西岸。
Anderson, W.D. and V.G. Springer, 2005. Review of the perciform fish genus Symphysanodon Bleeker (Symphysanodontidae), with descriptions of three new species, S. mona, S. parini, and S. rhax. Zootaxa 996(1):1-44. (Ref. 54833)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
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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 = 0.5004 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00158 - 0.01051), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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