Diagnostic Description
provided by Fishbase
This species differs from all members of the genus Microglanis by having a forked caudal fin with a deep notch between upper and lower lobes, two pale juxtaposed and elliptical spots in the supraoccipital region, and length of the adipose-fin base 13.1-16.6% of SL. It can be separated from other species by the following morphometric characters: length of the head 27.4-30.0% of SL (vs. 24.7-26.4% in M. carlae; 23.9-25.1% in M. iheringi; 23.0-26.1% in M. parahybae; 23.0-25.4% in M. pataxo; 23.5-26.3% in M. robustus); eye diameter 8.0-9.9% of HL (vs. 12.4-17.6% in M. variegatus); interorbital distance 40.4-44.2% of HL (vs. 45.9-51.5% in M. cottoides; 46.5-49.8% in M. leptostriatus; 46.6-48.6% in M. malabarbai; 38.1-39.1% in M. pellopterygius; 50.9-53.1% in M. poecilus); mouth width 38.0-47.3% of HL (vs. 19.0-25.8% in M. cibelae; 17.5-21.9% in M. garavelloi; 20.1-22.6% in M. nigripinnis); predorsal length 35.5-38.6% of SL (vs. 38.9-46.2% in M. eurystoma); lateral line pores 6-8 (vs. 9 in M. ater and M. secundus); principal caudal rays 15 (vs. 14 in M. zonatus) (Ref. 94156).
Morphology
provided by Fishbase
Dorsal spines (total): 1; Dorsal soft rays (total): 6; Analsoft rays: 11; Vertebrae: 27
Trophic Strategy
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Found in the main channel of the rio Amazonas (white waters) with bottom rich in organic matter and pieces of wood (Ref. 94156).
Biology
provided by Fishbase
Found in the main channel of the rio Amazonas (white waters) with bottom rich in organic matterand pieces of wood (Ref. 94156).