Record of a larval Parataeniophorus brevis from Hawaii

A 7.2 mm notochordal-length larva of Parataeniophorus brevis is described and illustrated from the fifth and the smallest specimen, collected near Hawaii. This larva is compared to all other described species of the family Mirapinnatidae, and is unique in having the unpaired fin rays developing in the finfold. The three species of Parataeniophorus can be distinguished on the basis of the number of dorsal-fin and anal-fin rays: bertelseni , 18–20 and 16–18; brevis , 13–16 and 13–15; gulosus 28–33 and 23–29, respectively.