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) >
Trichomycteridae (Pencil or parasitic catfishes)
毛鼻鯰科 (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: Ituglanis: Greek, itys, ityos = circle + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); cahyensis: Named for the rio Cahy, the main river of the basin where this species was captured.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: known only from rio Palmares, a tributary of the rio Cahy in Bahia, Brazil.
南美洲: 已知只來自 rio了手掌的, 在 Bahia 巴西的 rio Cahy 的一個支流。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 57703)
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) : 9; 臀鰭軟條: 7 - 8; 脊椎骨: 40. Distinguished from most of its congeners, except Ituglanis macunaima and Ituglanis parahybae, by having a pectoral fin ray count of I,4. Differs also from all its congeners, excluding Ituglanis parahybae, by the coloration pattern with longitudinal rows of coalescing blotches. Can be differentiated from Ituglanis parahybae by the supraorbital laterosensory canal branch with pores s3 and s6 present.
與大部分的區分了它的同類, 除了 Ituglanis macunaima 與 帕拉氏伊都毛鼻鯰〔Ituglanis parahybae〕 以外, 藉由有一個 I 的胸鰭鰭條計數,4. 也不同於它所有的同類, 排除 帕拉氏伊都毛鼻鯰〔Ituglanis parahybae〕 ,顏色圖案有數縱列的合併斑塊藉由。 能用孔 s 3 與 s 從 帕拉氏伊都毛鼻鯰〔Ituglanis parahybae〕 被區別藉由眶上的側線管分支 6 存在的。
描述: 背鰭 ii,7; 臀鰭 ii,5-6; 胸鰭 i,4; 腹鰭 i,3.(參考文獻 57703)
Found in brown waters with moderate flowing current and sandy or gravel bottom. Feeds on insect larvae, nymphs and organic matter (Ref. 57703).
發現於.褐色水域有中等的流動水流與沙的或礫石底部。 吃昆蟲幼生，蛹與有機物。 (參考文獻 57703)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 已知只來自 rio了手掌的, 在 Bahia 巴西的 rio Cahy 的一個支流。
Sarmento-Soares, L.M., R.F. Martins-Pinheiro, A.T. Aranda and C.C. Chamon, 2006. Ituglanis cahyensis, a new catfish from Bahia, Brazil (Siluriformes: Trichomycteridae). Neotrop. Ichthyol. 4(3):309-318. (Ref. 57703)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
近危 (NT) (B1b(iii,v)); Date assessed: 16 May 2022
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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=0.00661 (0.00279 - 0.01564), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
