分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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
生態學
; 淡水 底中水層性; pH range: 7.9 - 8.6. ? - 24°C (Ref. 55401)
South America: tributaries of the mainstream in the Angelica Cave in central Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 55401)
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) : 10; 臀棘: 0; 臀鰭軟條: 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).
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
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435)
極危 (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 (0.00282 - 0.01550), 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).
