分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Mochokidae (Squeakers or upside-down catfishes) > Chiloglanidinae
Etymology: Chiloglanis: Greek, cheilos = lip + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); tweddlei: This species is named for Denis Tweddle, of the South African Institute for Aquatic Biodiversity (SAIAB), who collected most of the type material and provided the specimens; and he is recognized for his ongoing contributions to ichthyological research in Africa (Ref. 116018).
Eponymy: Denis (d: 1949) and Sharon Tweddle are husband and wife and together were honoured in the name of the dwarf sanjika for their contributions (e. [...] (Ref. 128868), visit book page.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性.
Africa: St. John River drainage in Guinea and Liberia (Ref. 116018).
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 5.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 116018)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 2; 背的软条 (总数) : 4 - 6; 臀棘: 0; 臀鳍软条: 9 - 10. Diagnosis: Chiloglanis tweddlei is distinguished from C. waterloti, C. normani, C. occidentalis, C. nzerekore, C. longibarbis, C. kabaensis, and C. kolente in having more mandibular teeth in the functional row; it can be easily distinguished from C. polyodon and C. lamottei in having fewer mandibular teeth in the functional row, and from Chiloglanis aff. micropogon in having moderately long medial and lateral mandibular barbels vs. absent or reduced barbels; it is distinguished from C. dialloi, C. loffabrevum, and C. camarabounyi in having longer dorsal and pectoral spines; it can be distinguished from C. pezoldi in having a wider premaxillary tooth patch, 15.3-18.2% of standard length vs. 12.2-15.8%, and in having more premaxillary teeth in four rows vs. fewer teeth in three rows (Ref. 116018).
Body shape (shape guide): elongated.
This species was collected in a medium-sized stream (3-12m) with mostly sand and bedrock ridges, as well as, fallen trees and undercut tree roots (Ref. 116018).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Schmidt, R.C., H.L. Bart, F. Pezold and J.P. Friel, 2017. A biodiversity hotspot heats up: Nine new species of suckermouth catfishes (Mochokidae: Chiloglanis) from Upper Guinean forest steams in West Africa. Copeia 105(2):301-338. (Ref. 116018)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
濒危 (EN) (B1ab(iii)); Date assessed: 12 November 2019
人类利用
渔业: 没有兴趣
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特别资料
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基于模型的估算
系统发育多样性指数 (参考文献
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).
营养阶层 (参考文献
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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