User blog comment:BannedLagiacrus/Monster Appreciation Week: Dalamadur/@comment-20010297-20160229140627/@comment-24965733-20160229224019

Even assuming the poster is completely to scale, Ravi is clearly curled up to fit into it. And since we can't see where the tail terminates, that gives us absolutely no way to know how long it is from that poster.

And yeah, there's no official length for Ravi. We can only approximate based on estimations. Making this essentially meaningless.