Pínnula, pínnulæ, pen. cor. Diminut. Pl. Col. The ouer part of the eare: a little quil: a little sinne of fishe. A part of the fleshe growing ouer the naile of the finger or toe.
Lewis and Short: Latin dictionary
pinnŭla, ae, f.dim. [1. pinna], a little plume or wing.I.Lit., Plaut. Am. prol. 143; Col. 8, 5.—II.Transf., a little fin, a fin, Plin. 9, 57, 83, 175; Vulg. Lev. 11, 9; id. Deut. 14, 9.