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Teleostei >
Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); pohnpeiensis: Named for its type locality, Pohnpei Island..
More on authors: Schwarzhans, Møller & Nielsen.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 27 - 46 m (Ref. 57884). 熱帶
Central Pacific: apparently endemic to the Pohnpei State, Micronesia. Appears to be allopatric with Diancistrus eremitus (from Hermit and Stewart Is. And Fiji further south) and with Diancistrus mennei (from Marshall and possibly Kiribati).
中太平洋: 顯然是波納佩島州，密克羅尼西亞的特有種。 似乎異地的具有 Diancistrus eremitus(從隱士與斯圖爾特島與斐濟更南方) 與 Diancistrus mennei.(從馬紹爾群島與可能地吉爾巴斯)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 8.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 57884); 5.9 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 83 - 85; 臀鰭軟條: 66 - 69; 脊椎骨: 45 - 46. The species is characterized by the following: vertebrae 11+34-35=45-46, dorsal fin rays 83-85, anal fin rays 66-69; very large eyes (>3.0% SL), D/V 6; outer pseudoclasper large, more than twice the length of inner pseudoclasper, wing-shaped, with moderately narrow base and strongly expanded tip with fleshy bulge; inner pseudoclasper joined to outer pseudoclasper anteriorly, thin, with single sharply pointed tip, slightly extending over anterior part of outer pseudoclasper; moderately broad scale patch on cheek with 5-6 scale rows on upper cheek, 2-3 scales on operculum above opercular spine (1 row); the head massive; otolith moderately slender, length to height ratio 1.9-20 (Ref. 57884).
此魚種特徵為那在:之後 脊椎骨 11+34-35=45-46 ，背鰭鰭條 83-85, 臀鰭棘條 66-69; 非常大的眼 (>3.0% SL), D/V 6; 外部的 pseudoclasper 大的, 超過長度兩倍於內部的 pseudoclasper, 翼-形狀的, 與一般狹窄的基底而且強烈地擴大頂端有肉質的凸起; 內部的 pseudoclasper 前面地連到了外部的 pseudoclasper, 細的, 有單一個非常尖的頂端, 些微地延伸超過外部 pseudoclasper 的前部; 一般寬的鱗片小區塊在上面的頰上頰部有 5-6 鱗片列之上, 在上面鰓蓋棘 (1 列) 的鰓蓋上的 2-3個鱗片; 頭部大的; 耳石一般細長, 高度比 1.9-20 的長度.(參考文獻 57884)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
中太平洋: 顯然是波納佩島州，密克羅尼西亞的特有種。 似乎異地的具有 Diancistrus eremitus(從隱士與斯圖爾特島與斐濟更南方) 與 Diancistrus mennei.(從馬紹爾群島與可能地吉爾巴斯)
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)
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Estimates based on models
Preferred temperature (Ref.
123201): 28 - 28.7, mean 28.7 °C (based on 4 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
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
