pearl shaped

Having the shape or appearanco of a pearl. pearl-side, s. Ichthy.: Scopelus pennant i (the S. humboldtii , or Argentine, of Yarrell's first and second editions.) "Pennant unfortunately referred his fish to the genus Argentina, which is a totally distinct form, and British ichthyologists, in repeating his observations on a species which none of them had seen, retained the generic name. To prevent further mistake, the designation of Pearl side is now substituted for that of Argentine." - Yarrell: pearl-sinter, s . British Fishes (ed. 3d), i. 331.