Classification / Names
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Siluriformes (Catfishes) >
Pseudopimelodidae (Bumblebee catfishes, dwarf marbled catfishes)
Etymology: Microglanis: Greek, mikros = small + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335); xylographicus: The name xylographicus is derived from the Greek xylosgraphikos, of writing. It is a reference to the horizontally striated color pattern, like a tree bark. An adjective (Ref. 88956).
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό. Tropical; 15°S - 16°S, 52°W - 53°W
South America: Brazil. Known from tributaries of the rio das Mortes and small nearby direct tributaries of the rio Araguaia such as the córrego Jaraguá and rio das Garças, in States of Mato Grosso and Goiás, Brazil (Ref. 88956).
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.8 cm SL αρσενικό/απροσδιόριστο; (Ref. 88956)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Microglanis xylographicus is easily distinguished from its congeners by two characters related to color pattern: (1) trunk brown with horizontal light stripes that in conjunction impart a tree-bark pattern, and (2) absence of any light marks (blotch or transversal band) crossing the occipital region. The new species can be further distinguished from its congeners, except Microglanis robustus, by the neuromasts surrounded by melanophores, forming three series of aligned small black points laterally on the trunk, four series in the head, one series on the lateral of nape, and one series posterior to the nape. It is distinguished from M. robustus by having a relatively long snout 11.4-12.9% SL (vs. 9.1-10.7% SL), and five pleural ribs (vs. 6 or 7) (Ref. 88956).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Ruiz, W.B.G. and O.A. Shibatta, 2011. Two new species of Microglanis (Siluriformes: Pseudopimelodidae) from the upper-middle rio Araguaia basin, Central Brazil. Neotrop. Ichthyol. 9(4):697-707. (Ref. 88956)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
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=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
