The famous xenomorph creature from the Alien series of movies.

This ring is a full bodied Alien crawling on your finger.

fits a man's pinky finger or a woman's index finger or thumb, unisex ring.

Sterling silver or silver plated. looks like sterling , but can't find a 925 mark anywhere. 

Can't find an artist's or company's insignia either. 

Bought it in Hollywood from a movie memorabilia store, but don't see another ring online that's the same. 

creature is about 1 inch and 7/16", a little past your knuckle when you wear it.