Moderately elongate; sucking disc on head medium length, reaches ~to tips of pectorals, with 12-14 plates; lower gill rakers ~10, including rudiments; pectoral broad, rounded 18-21 rays; dorsal with short base, 15-22 rays; anal base ~ head length, 20-26 rays; tail bluntly straight (forked in juvenile); pelvics small, blunt, narrowly joined to belly by membrane .
Uniform pale grey to white.
Size: 35 cm.
Habitat: hosts are manta rays, sharks and marlin.
Depth: 0-50 m?
Circumtropical; throughout our region except for the upper Gulf of California.