分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Loricariidae (Armored catfishes)
甲鯰科 (Armored catfishes) > Loricariinae
Etymology: Ixinandria: Greek, ixine, -es, ixia = varicose veins + Greek, andria, -on = a little man; It could be understood as a man with sordid aspect, derived from Greek, ixos, -ou.
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 溫帶
South America: Upper río Juramento basin, río Salado drainage in Salta (Argentina), upper río Bermejo in northwestern Argentina and southern Bolivia, and upper río Pilcomayo in southern Bolivia.
南美洲: Salado 河流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 11.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 86762)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Distinguished from most loricariines by total absence of abdominal plates, including the preanal plate. Members of Hartiella and a few species of Harttia also have the abdomen completely devoid of plates, and can be separated from species of Ixinandria by having 12 branched caudal-fin rays (vs. 10 in Ixinandria) and by the absence of postorbital notch, which is present in members of Ixinandria. Members of Crossoloricaria, Spatuloricaria, and Loricaria sometimes lack a preanal plate, but have small abdominal plates. Some species of Rineloricaria have a naked abdomen, but a preanal plate is always present, except in Rineloricaria setepovos which can be diagnosed from other loricariines by the shapes and number of premaxillary teeth. Ixinandria possesses wide and almost symmetrical tooth cusps, and up to 18 teeth in each premaxilla (vs. premaxilla with up to 13 narrow and clearly asymmetrical teeth in other loricariines, except Rineloricaria aequalicuspis which has up to 15 narrow teeth with nearly symmetrical cusps, and some hartiini, which also have many asymmetrical premaxillary teeth) (Ref. 86762).
This species is found in fast flowing waters between 15 and 65 cm depth, especially in places with filamentous algae, in mountainous areas at altitudes ranging from around 200 to 2900 meters above sea level. During the day, it occurs in fast flowing and highly oxygenated waters, with stony bottom, usually hiding under the stones (Ref. 86762).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Salado 河流域。
Rodriguez, M.S., C.A. Cramer, S.L. Bonatto and R.E. Reis, 2008. Taxonomy of Ixinandria Isbrücker & Nijssen (Loricariidae: Loricariinae) based on morphological and molecular data. Neotrop. Ichthyol. 6(3):367-378. (Ref. 86762)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00181 - 0.00834), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.6 ±0.2 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
