Nekrozon: "Found only in the wilderness (usually in swampy areas), the terrible nekrozon resembles a huge buffalo with a long neck and boar's head. The gaze of a nekrozon is a 60' long magical death ray." (Jeff Easley illus, from Dungeons & Dragons Master DM's Book compiled by Frank Mentzer, TSR, 1985)
The nekrozon clearly began as AD&D's catoblepas, reworked for the legally distinct D&D rule system that was developed parallel to AD&D for two decades.













