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); ramiroi: The specific name honors Ramiro Hilario dos Santos, local inhabitant and guide in Terra Ronca State Park, who discovered this species and an enthusiastic supporter of the protection of caves in the area.
Eponymy: Ramiro Hilário dos Santos is a local guide and dedicated protector of the caves in Terra Ronca State Park, Goiás, Brazil. He has discovered and explored many caves as well as discovering the holotype of this subterranean species. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; pH range: 6.8 - 7.5; 深度上下限 0 - ? m (Ref. 55401). 热带; ? - 23°C (Ref. 55401)
South America: pool formed by infiltration of water in the São Bernardo Cave in Brazil.
南美洲: 水池在巴西的 Sao Bernardo 洞穴由水的渗入形成了。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 3.1 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
背的软条 (总数) : 9; 臀鳍软条: 6; 脊椎骨: 36. Distinguished from its epigean and cave congeners by the combination of the following characters: small size (max. 3.13 cm SL); reduced body pigmentation, with very small chromatophores. Dorsal region of head darker than remaining body parts; small integument fold anterior to dorsal fin and prominent posterior to dorsal fin; eye size intermediate between I. bambui and I. epikarsticus, 3.7-4.7% HL; nine pectoral-fin rays; base of laminar surface of urohyal 1.5 times larger than distal extremity, dorsal process long; posterior process of palatine 3/4 of palatine length, with medial concavity slightly rounded; maxilla straight, without medial-posterior projection; fronto-lachrymal as long as maxilla, posteriorly pointed; opercle with 12-13 odontodes, interopercle with 24-25 odontodes; caudal skeleton with the upper hypural plate trapezoidal and the lower trapezoidal to rectangular, neural spine of preural centrum with acute extremity, dorsal procurrent rays 16 and ventral 12 (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 3.13 公分 SL); 缩小的身体颜色了, 具有非常小的色素胞。 头部的背部区域比剩余的身体部份颜色更深; 小的体表折层位于背鳍前与突出的在背鳍后面; 介于 I. bambui 与 I. epikarsticus 之间的眼睛大小, 3.7-4.7% HL; 九个胸鳍鳍条; 尾舌骨 1.5 倍大于的 laminar 表面的基底末梢部的末端, 背部的突起长的; 颚骨上颚长度中的 3/4 的在后部突起, 与中間的凹窪略圓的; 顎骨直線, 沒有中間-在後部的突出; fronto-淚骨長達顎骨, 在後部尖; 用 24-25個齒鰓蓋有 12-13個齒中鰓蓋; 具有上面的尾下碟尾部的骨骼梯形而下面的梯形到矩形的, 用尖銳的末端，背部的前流鰭條 16 與腹面 12 的 preural 椎體的髓棘.(參考文獻 55401)
描述: 背鰭有 9 鰭條;(3 不分枝的, 6個分枝) 臀鰭有 6個鰭條;(2 不分枝的, 4個分枝) 胸鰭有 9個鰭條, 第一個鰭條不分枝而絲狀的; 腹鰭有 5個鰭條, 第一個鰭條不分枝的.(參考文獻 55401)
Occurs in a side pool five meters above the main stream level, formed by water percolating from the rock. A solitary species, swimming on the bottom and displaying rare events of surface swimming (Ref. 55401). Exhibits weak cryptobiotic habits, sometimes hiding under boulders, but not burying in the silt (Ref. 55401).
出现于被由过滤从岩石的水形成的一个旁的水池五公尺上方主要的水流水平。 一种独居性种, 在底部上游泳而且显示表面游泳的稀有事件.(参考文献 55401) 显示弱的隐密性的生物习惯, 有时在大圆石下面藏, 但是不是在淤泥中的埋.(参考文献 55401)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 水池在巴西的 Sao Bernardo 洞穴由水的渗入形成了。
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)
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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).
