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Siluriformes (Catfishes) >
Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes) > Pseudopimelodinae
Etymology: Rhyacoglanis: From the Greek words 'rhyax' (torrent) and 'glanis' (catfish), indicating a catfish inhabiting running waters in reference to its habitat (Ref. 128485); paranensis: Specific name is an adjective, in reference to the occurrence of the species in the upper Rio Paraná basin (Ref. 128485).
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar dasar (demersal). Tropical
South America: Brazil.
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 8.9 cm SL jantan/; (Ref. 128485)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 6; Sirip dubur lunak: 5 - 7; vertebrata, bertulang belakang: 31 - 33. This species can be distinguished from R. annulatus by the following set of characters: by having a uniformaly dark caudal peduncle band; wide subdorsal band; fewer number of total vertebrate; greater distance between the pelvic-fin and anus; and, shorter distance between the anus and anal fin. It further differs from R. epiblepsis by the pointed caudal-fin lobes (vs. rounded lobes) and few dark body spots present (vs. many body spots of less intense pigmentation). Additionally, it differs from R. seminiger by having distinctly separated subdorsal and subadipose bands (vs. fused bands), continuity between dark pigmentation on the caudal-fin lobes (vs. separation of the pigmentation on those lobes) and discrete, dark transverse pectoral and pelvic-fin stripes present (vs. fins largely uniformly dark). It can be differentiated from R. pulcher by lacking dorsal and ventral confluence between the dark subdorsal and subadipose bands (vs. dorsal and ventral continuity of those bands), no confluence between subadipose and caudal-peduncle bands (vs. dorsal and ventral continuity of those bands), and fewer number of total vertebrae (31-33 vs. 33-35) (Ref. 128485).
Cross section: oval.
Inhabits rapids habitat (Ref. 128485).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Shibatta, O.A. and R.P. Vari, 2017. A new genus of Neotropical rheophilic catfishes, with four new species (Teleostei: Siluriformes: Pseudopimelodidae). Neotropical Ichthyology 15(2):e160132. (Ref. 128485)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00230 - 0.01313), b=3.11 (2.90 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Tingkat Trofik (Acuan
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Kerentanan Penangkapan Ikan (Ref.
59153): Low vulnerability (10 of 100).
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