This is an understory palm from Vanuatu. The “snakeskin” or “rattlesnake palm” grows to about twenty feet tall with a trunk a foot and a half in diameter and when young  is very difficult to distinguish from C.Zebrina. The leaves of ophiopellis are less glossy, a lighter green and thinner or finer, the leaflets less diamond shaped than zebrina and   mature trees would be much smaller than zebrina.
It will tolerate no cold, needs filtered light or shade, rich soil and ample water.

*Images coming soon*