Hooks: 3-7; anterior teeth: 7; posterior teeth: 18.
Maximum adult body length: 8 mm; tail: 26-30 %.
Body firm, opaque; transversal musculature absent; head narrow; hooks not serrated. Fin bridge absent. Anterior fins of medium length, fully rayed, rounded. Posterior fins of medium length, fully rayed, rounded. Long and narrow collarette; gut diverticula present. Large eyes, with star-shaped pigment spot. Seminal vesicles with knob and trunk; position of seminal vesicles: touching, or close to, posterior fins, but separated from tail fin. Ovaries long, reaching to neck region; ova large. Adhesive papillae and adhesive organs absent
Distribution: epipelagic; Indo-Pacific between 30° and 30°N.