The Arabic translation of the De Gen. Anim., made at the beginning of the ninth century by Yahyā ibn al-Bitrīq from a Syriac version, contains seven long omissions, noted by Drossaart Lulofs in his edition. Six of these represent approximately 110 letters or a multiple thereof in the Greek: 728b33–729a2 (226, or 224 with Z), 761a9–25 (658, or 661 with Z), 762a6–8 (112, or 106 with Z), 762b34–763a2 (107, or 101 with Z), 768a18–20 (110) and 781a7–12 (225, or 223 with Z). The seventh omission (787b22–788b30) is too long to be useful, as the scope for accidental errors is too great.