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No image available for this species; drawing shows typical species in Hypopomidae.
分類 / 名稱 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Gymnotiformes (Knifefishes) 電鰻目 (Knifefishes) > Hypopomidae (Bluntnose knifefishes) 無齒刀魚科 (Bluntnose knifefishes)
Etymology: Brachyhypopomus:Greek, brachys, eia = short + Greek, hypo = under + Greek, poma, -atos = cover (Ref. 45335); palenque:Derived from the río Palenque, a Pacific Ocean drainage of Ecuador, where the type series was collected. A noun in apposition.
臀鰭軟條: 180 - 229. Brachyhypopomus palenque is distinguished from other species of the genus Brachyhypopomus by the following combination of characters: caudal filament length 7.4-14.0% of length to end of anal fin (vs. 14.1-83.1% in B. alberti, B. batesi, B. benjamini, B. brevirostris, B. bullocki, B. cunia, B. draco, B. gauderio, B. hamiltoni, B. hendersoni, B. janeiroensis, B. jureiae, B. menezesi, B. pinnicaudatus, B. provenzanoi, B. sullivani, and B. walteri); pale stripe along middorsal region absent (vs. prominent pale uninterrupted middorsal stripe from occipital region to base of caudal filament present in B. arrayae, B. beebei, and B. belindae); mouth width 25.1-37.8% HL (vs. 15.9-23.2% in B. bennetti and B. flavipomus); accessory electric organ over the opercular region absent (vs. present in B. bombilla and B. regani); 19-22 precaudal vertebrae (vs. 24-26 in B. verdii); continuous or discontinuous dark vertical or diagonally oriented bars or saddles on body surface dorsal to lateral line absent (vs. present in B. diazi and B. palenque) (Ref. 116763). Body shape (shape guide): elongated.
Facultative air-breathing in the genus (Ref. 126274); Inhabits small streams and rivers to an altitude of ca. 650 m. Collected from leaf litter or submerged root mats, usually up against or under logs or large rocks. Omnivorous. Feeds on aquatic invertebrates, predominantly larval Chironomidae and Coleoptera in the type locality (Ref. 116763).
Crampton, W.G.R., C.D. de Santana, J.C. Waddell and N.R. Lovejoy, 2017. A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species. Neotrop. ichthyol. 14(4):e150146. (Ref. 116763)
系統發育多樣性指數 (參考文獻 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00141 - 0.00980), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (參考文獻 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
釣魚的脆弱性 (Ref. 59153): Low vulnerability (10 of 100). 🛈