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Teleostei >
Ophidiiformes (Cusk eels) >
Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); katrineae: Named for Katinae Worsaae, wife of P.R. Møller.
Eponymy: Katrine Worsaae is the wife of the second author, who thanked her for her ‘most valuable support’ during the many hours he invested in the study of this genus. (Ref. 128868), visit book page.
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 ? - 20 m (Ref. 57884). 亞熱帶的
Southeastern Pacific: French Polynesia, Cook and Pitcairn Islands.
東南太平洋: 法屬玻里尼西亞，庫克與皮特凱恩群島。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 57884); 7.8 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) : 78 - 86; 臀鰭軟條: 63 - 69; 脊椎骨: 44 - 46. This species is characterized by the following: Vertebrae 11-12+33-35=44-46, dorsal fin rays 78-86, anal fin rays 63-69; eyes large (2.0-3.1% SL), D/V 6; outer pseudoclasper large, broad, wing-shaped, with concave inner face; inner pseudoclasper joined to outer pseudoclasper anteriorly, thin, with narrow base and single-pointed tip extending over anterior part of outer pseudoclasper; moderately broad scale patch on cheek with 5-8 scale rows, large scale patch on operculum above opercular spine (13-21 scales) and separated smaller scale patch below opercular spine (3-7 scales); head is massive and thick (Ref. 57884).
這種特徵為那在:之後 Vertebrae 11-12+33-35=44-46 ，背鰭鰭條 78-86, 臀鰭棘條 63-69; 眼大的 (2.0-3.1% SL), D/V 6; 外部的 pseudoclasper 大的﹐寬的, 翼-形狀的, 有凹的內面; 內部的 pseudoclasper 前面地連到了外部的 pseudoclasper, 細的, 有狹窄的延伸超過外部 pseudoclasper 的前部的基底與單個-尖的頂端; 一般寬的鱗片小區塊頰部有 5-8 鱗片列之上, 大規模的小區塊在上面鰓蓋棘 (13-21個鱗片) 的鰓蓋上而且在鰓蓋棘 (3-7個鱗片) 之下分開較小的鱗片小區塊; 頭部是大而厚的。 (參考文獻 57884)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
東南太平洋: 法屬玻里尼西亞，庫克與皮特凱恩群島。
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 2024-1)
無危 (LC) ; Date assessed: 16 August 2019
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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=0.00389 (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): 3.4 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Diancistrus katrineae (Katrine\](/images/thumbnails/gif/tn_Dikat_m0.gif "Image of Diancistrus katrineae (Katrine\")
