bisulcus, a, um, adj. bis-sulcus (twofurrowed), hence, in gen., divided into two parts, two-cleft, cloven (poet. and in postAug. prose): lingua, forked, Pac. ap. Non. p. 506, 17; Ov. M. 9, 65: pedes, * Lucr. 2, 356; Ov. M. 7, 113; Plin. 11, 45, 105, § 254: ungula, a cloven hoof, id. 8, 21, 30, § 73; 10, 1, 1, § 1: cauda, id. 9, 29, 46, § 85: forcipes, id. 11, 28, 34, § 97.

— Subst.: bisulca, ōrum, n. (sc. animalia), animals with cloven feet (opp. to the solidipedes), Plin. 11, 37, 85, § 212: cornigera fere bisulca, id. 11, 46, 106, § 255; 10, 65, 84, § 184; 10, 73, 93, § 199.

—Rare in sing.: bisulcum oryx, Plin. 11, 46, 106, § 255.