分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
>
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); australis: From the Latin adjective australis, meaning southern, in reference to the new species representing
the southernmost record of Ituglanis.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Subtropical
South America: Laguna dos Patos basin in Brazil and Río Uruguay basin in Uruguay.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 7.6 cm SL オス/雌雄の選別がない; (Ref. 95054)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 8 - 9; 臀鰭: 6 - 8. Ituglanis australis can be diagnosed from all its congeners, with the exception ofI. parahybae andItuglaniscahyensis, by its color pattern consisting of three well-defined dark brown stripes running along each body flank (vs. dark pigmentation either absent, uniform or forming regular or irregular spots). It can be distinguished from I. parahybae and I. cahyensis in having i,4 pelvic-fin rays (vs. i,3 when pelvic fin is present), modally i,5 pectoral-finrays (vs. i,4) and pores i1 and i3 of the infraorbital branch of the cephalic laterosensory system usually present (vs. pores i1 and i3 always absent). It further differs from I. parahybae by having pores s3 and s6 of the supraorbital branch of the cephalic laterosensory system (vs. pores s3 and s6 absent) and from I. cahyensis by having 8 basal radials of the dorsal fin (vs. 7) (Ref. 95054).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Datovo, A. and M.C.C. De Pinna, 2014. A new species of Ituglanis representing the southermost record of the genus, with comments on phylogenetic relationships (Teleostei: Siluriformes: Trichomycteridae). J. Fish Biol. 84(2):314-327. (Ref. 95054)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
Human uses
用具
特記事項
XMLをダウンロードして下さい
インターネットの情報源
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).
栄養段階 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
