Only the left carotid is present. The manubrium sterni is trifid, the inner portion being forked, and the outer single. Behind the spine is a foramen as in Upupidae and Bucerotidae. Cervical vertebra? 15. The flexor perforans digitorum gives off from its inner side the slip which supplies the hallux, before blending with the f. longus hallucis. The conjoined tendons then divide into three to supply the other toes. Other characters as in Coraciae.
A single family.