Hooks: 8-10; anterior teeth: 4; posterior teeth: 4-5.
Maximum adult body length: 3 mm; tail: 53-55 %.
Body firm; transversal musculature on trunk; head wide; hooks not serrated. Fin bridge absent; one pair of short lateral fins both on trunk and tail; lateral fins fully rayed, rounded. Collarette long; gut diverticula absent; eyes large and round, with large H-shaped pigment spot.
Seminal vesicles conical; position of seminal vesicles: touching both posterior fins and tail fin. Ovaries long, reaching to neck region; ova large.
Adhesive papillae present; adhesive organs with adhesive appendages absent; apical glands absent.
Distribution: benthic neritic.
Remarks: 7 specimens found in Hawaii.
Type locality: Kure Atoll (Hawaii).