Author: Risch, 1980
Comments: Amphidromous freshwater species (Ref. 92840). Found around rocks in fast-flowing freshwaters; often found in the same habitat as <I>Sicydium crenilabrum</I> and, like <I>Sicydium crenilabrum</I>, it seems evasive and difficult to catch, and may be more widely distributed than is presently documented; maximum standard length reported 44.9 mm (Ref. 79590).