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) > Hypoptopomatinae
Etymology: Parotocinclus: Greek, para in the side of + greek, ous, otis = ear + Greek, kygklos, ou = a fish (Ref. 45335); jequi: The specific name jequi is from the native Tupi language ye’kei, a type of fish trap, and part of the name of Rio Jequitinhonha, which means field of the river traps: jequi (fish trap), ty (water, river), and nhum (field). A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的.
South America: headwaters of the Rio Jequitinhonha, Brazil.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 5.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 94247)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 1; 背的軟條 (總數) : 7; 臀鰭軟條: 6; 脊椎骨: 30 - 31. Can be diagnosed from other species of Parotocinclus, except P. prata and P. robustus, by its lack of abdominal plates between the pectoral girdle and the anus. Differs from these species by having smaller cleithral width (16.7-20.7 vs. 20.8- 27.6% SL in P. prata and 25.9-28.8% SL in P. robustus). Can be further distinguished from P. prata by the ventral surface of head, behind the lower lip, smooth and unwrinkled in adults (vs. wrinkled and rugose), and by the tip of adpressed pectoral fin not reaching to middle of pelvic fin (vs. pectoral fin reaching to middle of pelvic fin); also from P. robustus by the lack of dark brown dots on body (vs. presence in large specimens of many dark brown dots on dorsal and lateral region of head and trunk). Distinguished also from most other congeners (except P. arandai, P. bahiensis, P. prata, P. robustus, and P. spilurus) by having the rostral plate not visible ventrally (vs. visible in ventral view); and except for P. cearensis, P. cesarpintoi, P. jumbo, P. prata, P. robustus, P. spilosoma, and P. spilurus, by having the pectoral girdle covered by thick skin medially and exposed supporting odontodes only laterally (vs. pectoral girdle exposed and supporting odontodes medially and laterally). Can be further separated from all congeners from the Amazon and Orinoco basins and the Guianas coastal drainages (except P. collinsae), by the absence of a triangular patch of dark pigmentation on the anterior dorsal-fin base (vs. presence). Differs from P. collinsae by the absence of accessory teeth on the premaxilla and dentary (vs. presence) (Ref. 94247).
Facultative air-breathing in the genus (Ref. 126274); Inhabits headwater creek with clear water, depth of 0.3 to 1.2 m, substrate composed of rocks and pebbles, and marginal vegetation (Ref. 94247).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Lehmann, A.P., B. Koech Braun, E.H.L. Pereira and R.E. Reis, 2013. A new species of the Hypoptopomatinae catfish Parotocinclus (Siluriformes: Loricariidae), from the headwaters of the Rio Jequitinhonha, Brazil. Copeia 2013(3):435-440. (Ref. 94247)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; 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=0.00851 (0.00374 - 0.01935), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
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).
