Found in clear, high-gradient streams with rocky bottoms; it lives on the bottom of the river, on top of rocks, but it is also often seen swimming in open water in the current between rocks or in large pools . It is supposed, like the other Sicyopus, to be amphidromous .
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 10. Diagnosis: A Sicyopus species which is distinguished from all the other species with the following set of characters: (i) a particular colour pattern, being similar in both sexes with three blackish bands present on the flanks: the first band extends from the tip of snout and upper lip, under the eye to the posterior edge of operculum and pectoral base, and from pectoral base to hypural; the second extends from behind the eye to the caudal fin; and the third runs along the upper part of flank from above the pectoral fin to the second dorsal fin base; (ii) a second dorsal fin with nine soft rays; (iii) a shorter caudal fin length in male; (iv) more scales in lateral series, 35–43, and transverse back scale series, 12–18 . : fusiform / normal.
Behavioural data for Lord's Sicyopus is currently being reviewed.
Marine; freshwater; brackish; demersal; amphidromous. Tropical
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