分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Auchenipteridae (Driftwood catfishes)
頸鰭鯰科 (Driftwood catfishes) > Auchenipterinae
Etymology: Ageneiosus: Greek, a = without + greek, geneias, -ados = bear, chin (Ref. 45335); intrusus: Name from Latin 'intrusus' meaning intruded, referring to the distinct character of the species wherein premaxilla is protuding beyond the dentary (Ref. 124585).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性; 深度上下限 3 - ? m (Ref. 124585).
South America: Bolivia and Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 27.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 124585)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 6; 臀鰭軟條: 37 - 46; 脊椎骨: 49. This species can be distinguished from its congeners (except A. pardalis and A. ucayalensis) by having an upper jaw that overhangs the lower jaw by a distance greater than the horizontal eye diameter (vs. less than the horizontal eye diameter). It is further distinguished by the following set of characters: reduced and ossified gas bladder (vs. large, non-ossified gas bladder) and by having epaxial musculature that covers the tympanic region (vs.tympanic region translucent, not concealed by epaxial musculature) in A. pardalis; robust pectoral spine, rigid and sharp (vs. pectoral spine slender, becoming progressively segmented in individuals larger than about 100 mm SL) and 45 vertebrae (vs. 53-55) in A. ucayalensis; anal-fin rays 37-46, mode 42 (vs. 32–38, mode 34-35) in A. lineatus; deeply forked caudal fin (vs. caudal fin strongly emarginate to truncate in A. inermis, A. magoi, A. polystictus and A. vittatus); more gill rakers on the first branchial arch 15-20, mode=18 (vs. 13-16, mode=14) and by usually having a dark band on the distal margin of the caudal-fin rays (vs. distal margin of caudal-fin rays hyaline) in A. apiaka (Ref. 124585).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Ribeiro, F.R.V., L.H. Rapp Py-Daniel and S.J. Walsh, 2017. Taxonomic revision of the South American catfish genus Ageneiosus (Siluriformes: Auchenipteridae) with the description of four new species. J. Fish Biol. 90:1388-1478. (Ref. 124585)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 10 December 2020
人類使用
工具
特別的報告
下載 XML
網路資源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
營養階層 (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
