分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 0 - 20 m (Ref. 90102). 亞熱帶的
Western Pacific: Japan (Ryukyu Is.), Taiwan to northern Philippines, southwards to about 10°N. Further south, across the equator, iti is replaced by Diancistrus alleni.
西太平洋: 日本 (琉球島), 台灣到菲律賓北部,向南至大約 10個 ° N. 更南方, 越過赤道， iti 被 Diancistrus alleni 取代.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 559)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 74 - 85; 臀棘: 0; 臀鰭軟條: 58 - 69; 脊椎骨: 43 - 45. Diagnosis: This species is distinguished by the following: Vertebrae 11+32-34=43-45, dorsal fin rays 74-85 (usually >77), anal fin rays 58-69, D/V 6 (rarely 7); eyes moderately large (2.4-3.4% SL); outer pseudoclasper with hook-shaped extension oriented backward at 90° angle and slightly bent outwards, with a rounded tip; inner pseudoclasper short, joined to outer pseudoclasper anteriorly, with supporter, with small hook and wide thin flap at its base; scale patch on cheek with 5-6 scale rows on upper cheek, scales on operculum only above opercular spine, 3-7 scales in 2 rows; head profile slender, broad; otolith length to sulcus length about 2.0, sulcus not inclined (Ref. 57884).
鑑別: 這種被藉著區別那在:之後 Vertebrae 11+ 32-34=43-45 ，背鰭鰭條 74-85(通常 >77) ，臀鰭棘條 58-69, D/V 6;(很少地 7) 眼普通大的 (2.4-3.4% SL); 具有鉤的外部 pseudoclasper-形狀的延長導向的向後地以 90個 ° 角與些微地向外地彎曲, 具有一個圓形的頂端; 內部的 pseudoclasper 短, 連到了外部的 pseudoclasper 前面地在它的基底，與支持者，有小的鉤與寬的細鰓蓋; 鱗片小區塊在上面的頰上頰部有 5-6 鱗片列之上, 鱗片在鰓蓋上只有在上面在 2 列中的鰓蓋棘 , 3-7個鱗片; 頭部輪廓細長的, 寬的; 對 sulcus 長度大約 2.0 的耳石長度, sulcus 不傾向.(參考文獻 57884)
描述: 前鼻孔低的, 接近上嘴唇。 尾鰭發展良好的, 不結合了背鰭與臀鰭。 用它的眾多縱向的鱗片列與 B. erythrea 區分了。 (參考文獻 559)
Rare species, known from a single male specimen (Ref. 34024). Solitary inhabitant of coral reef crevices to at least 20 m depth, cryptic (Ref 90102).
稀有的種, 已知來自一個雄性標本了。 (參考文獻 34024)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西太平洋: 日本 (琉球島), 台灣到菲律賓北部,向南至大約 10個 ° N. 更南方, 越過赤道， iti 被 Diancistrus alleni 取代.
Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 15 August 2019
人類使用
漁業: 沒有興趣; 水族館: 商業性
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特別的報告
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網路資源
Estimates based on models
Preferred temperature (Ref.
123201): 24.3 - 29.3, mean 28.7 °C (based on 1717 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Assuming Fec < 100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
