分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Trichomycteridae (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); bambui: Specific name in reference to the carbonate geological unit, the Bambui Group, where it occurs, and in recognition to the Brazilian speleological association, Grupo Bambui de Pesquisas Espeleologicas (GBPE), for its contribution to Brazilian speleology.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 7.9 - 8.6. 热带; ? - 24°C (Ref. 55401)
South America: tributaries of the mainstream in the Angelica Cave in central Brazil.
南美洲: 在白芷洞穴中在巴西中部的主流的支流。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 4.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55401)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 10; 臀棘: 0; 臀鳍软条: 9; 脊椎骨: 36 - 37. Distinguished from its epigean and cave congeners by the combination of the following characters: small size (max. 4.63 cm SL); pigmentation pattern intermediate between epigean and cave Ituglanis species, with small light brown spots on body, spots twice larger than in I. epikarsticus and I. ramiroi; eyes relatively developed when compared to cave species but reduced when compared to the epigean ones, with diameter varying from 0.2-0.3 mm (3.4-6.1% HL) in adults to 0.5 mm (5.7% HL) in juveniles (vs. 0.8-1.1 mm, 10.4-13.7% HL in adults of epigean Ituglanis species; n=6, 5.57-6.3 cm SL). Maxilla with prominent medial-posterior projection; fronto-lachrymal as long as maxilla, posteriorly pointed; posterior process of palatine 1/2 of palatine length, with medial concavity accentuated; vomer elongate with a small constriction in neck; opercle with 11 odontodes and interopercle with 26 odontodes; caudal skeleton with upper hypural plate triangular and lower trapezoidal, neural spine of preural centrum with rounded extremity, dorsal procurrent rays 16 and ventral 14 (Ref. 55401).
与它的区分了地面上的与洞穴同类藉由下列特征的组合: 体型小 (最大的 4.63 公分 SL); 介于地面上的与洞穴 Ituglanis 种之间的颜色图案,在身体上有小的淡褐色斑点, 斑点两次大于在 I. epikarsticus 与 I. ramiroi 中; 眼相当发展了当相较于洞穴种但是缩小的当相较于地面上的一些, 有直径从 0.2-0.3 mm(3.4-6.1% HL) 对在稚鱼中的 0.5 mm(5.7% HL) 改变当成鱼时 (vs.0.8-1.1 mm, 當成魚時地面上 Ituglanis 種的 10.4-13.7% HL; n=6, 5.57-6.3 公分 SL). 顎骨有突出的中間-在後部的突出; fronto-淚骨長達顎骨, 在後部尖; 顎骨上顎長度中的 1/2 的在後部突起, 與中間的凹窪強調; 犛骨延長在頸部中具有一個小的壓縮; 用 26個齒鰓蓋有 11個齒與中鰓蓋; 具有上面的尾下碟尾部的骨骼三角形而低的梯形, preural 椎體的髓棘有圓的末端，背部的前流鰭條 16 與腹面 14.(參考文獻 55401)
描述: 背鰭有 10 鰭條;(3 不分枝的, 7個分枝) 臀鰭有 9個鰭條;(4 不分枝的, 5個分枝) 胸鰭有 8個鰭條, 第一個鰭條比較長的﹐不分枝的與絲狀的; 而且腹鰭有 5個鰭條, 第一個鰭條不分枝的.(參考文獻 55401)
Occurs in the upper mainstream tributaries inside a cave, near the sinkhole end (Ref. 55401). A solitary species with swimming activity on the bottom, in midwater and sometimes extending to the surface (Ref. 55401).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 在白芷洞穴中在巴西中部的主流的支流。
Bichuette, M.E. and E. Trajano, 2004. Three new subterranean species of Ituglanis from central Brazil (Siluriformes: Trichomycteridae). Ichthyol. Explor. Freshwat. 15(3):243-256. (Ref. 55401)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
极度濒危 (CR) (B2ab(iii,v)); Date assessed: 07 November 2018
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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).
营养阶层 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
