A new species of Sicyopus (Gobioidei) from Java and Bali

<p>Sicyopus rubicundus n. sp., a sicydiine goby, is described from specimens collected in streams of&nbsp;Java and Bali (Indonesia). It differs from other species of this amphidromous genus by a combination of characters&nbsp;including a first dorsal fin with five spines in both sexes, a second dorsal fin with one spine and nine segmented&nbsp;rays, an anal fin with one spine and nine segmented rays, and a distinctive body colour in male.</p>