Sighted in a habitat characterised by a steep slope beginning in relatively deep water; about 10 individuals, including the holotype, were observed at 40 m, on a flat to gently sloping rubble bottom along the upper edge of a vertical drop-off (Ref. 75880).
- Allen, G.R. 2006 Cirrhilabrus brunneus, a new wrasse (Pisces: Labridae) from north-eastern Kalimantan, Indonesia. Aqua 11(1):1-4. (Ref. 75880) http://www.fishbase.org/references/FBRefSummary.php?id=75880&speccode=63981
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