A very small fish; females reach 0.6 in (1.5 cm) total length. Body is covered with scales, up to 25 in a longitudinal series along the flanks. The second dorsal and anal fins have six or seven soft rays. The pelvic fins are united into a small sucking disk. The body has a conspicuous pigmentation, with about four cross bands of dark spots on the flanks, and heavy pigmentation on the bases of all the fins except the pelvics. In males, the first dorsal fin is tipped with blue and the lower third is yellowish.
Was this article helpful?