分類 / 名前
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: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); macrophthalmus: Specific name is derived from the Greek makrós (large) and ophthalmós (eye), an uncommon condition among species of Trichomycterus.
More on authors: Barbosa & Costa.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の. Tropical
South America: Known only from the type locality, a small stream tributary to upper Piraí river, Araras hill, upper Paraíba do Sul river basin, Brazil.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 6.0 cm SL オス/雌雄の選別がない; (Ref. 89884)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 11; 臀鰭: 9; 脊つい: 35 - 36. Distinguished from all congeners from southeastern Brazil by having nine pleural ribs (vs. 10- 17). This is similar to Trichomycterus travassosi and distinguished from all other species of southeastern Brazil by having shorter nasal barbel, its tip reaching eye (vs. between middle of the distance eyeopercular patch of odontodes and pectoral-fin base). Can be separated from T. travassosi by having larger eye (13.2 - 14.6% of head length, vs. 8.5- 10.7 %) and dorsal and lateral midline spots coalesced to form transverse bars (vs. lateral midline spots not confluent to dorsal spots) (Ref. 89884).
Found actively swimming during day time in shallow places (20-40 cm deep) with fast flowing water, usually on gravel substratum, sometimes partially burrowed in the sand (Ref. 89884). Sympatric with Trichomycterus claudiae (Ref. 89884).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Barbosa, M.A. and W.J.E.M Costa, 2012. Trichomycterus macrophthalmus (Teleostei: Siluriformes: Trichomycteridae), a new species of catfish from the Paraíba do Sul river basin, southeastern Brazil. Verteb. Zool. 62(1):79-82. (Ref. 89884)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00912 (0.00394 - 0.02111), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |