[f. FILE sb.1 + FISH sb.] † a. = file-shell (FILE sb.1 5). Obs. b. A fish of the genus Balistes, having its skin granulated like a file.
1774. Goldsm., Nat. Hist., VII. iv. 61. The latter [kind] are called Pholades, or File Fish.
1839–47. R. B. Todd, The Cyclopædia of Anatomy and Physiology, III. 977/2. The incisors of the File-fish (Balistes) afford this curious example of a double gomphosis, the jaw and the tooth reciprocally receiving and being received by each other.
