Classification / Names
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Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Nemuroglanis: From the Nemuro peninsula in Japan, Hokkaido + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish; furcatus: The species epithet, furcatus, refers to the deeply-forked caudal fin (Ref. 86655).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce demersale. Tropical
South America: streams in the middle and upper portions of the rio Guariba, Rio Madeira basin in Brazil.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.7 cm maschio/sesso non determinato; (Ref. 86655)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Nemuroglanis furcatus is distinguished from all congeners by the possession of a long lateral line, reaching middle portion of the adipose-fin base (vs. lateral line extending slightly beyond dorsal-fin base origin); narrow posterior cranial fontanel in adult specimens, 16 to 27% of its length (vs. greater than 40% of its length); and pointed contour of the anterior border of the pectoral bridge (vs. rounded contour). The new species differs further from N. lanceolatus and N. pauciradiatus by possessing a forked caudal fin (vs. lanceolate); the ventral caudalfin lobe with six branched rays (vs. three or four rays); the dorsal caudal plate supporting eight rays (vs. six rays); and seven pairs of pleural ribs (vs. five or six). In addition, it is distinguished from N. mariai by having fewer anal fin rays (12–14, mode = 13, vs. 13–15) and vertebrae (41 vs. 42–44); and by possessing more branched pectoral-fin rays (seven, rarely six vs. six, rarely seven) (Ref. 86655).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Ribeiro, F.R.V., W.S. Pedroza and L.H. Rapp Py-Daniel, 2011. A new species of Nemuroglanis (Siluriformes: Heptapteridae) from the rio Guariba, rio Madeira basin, Brazil. Zootaxa 2799:41-48. (Ref. 86655)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00397 - 0.03168), b=2.97 (2.73 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
