You may recall sometime last year when I posted some images of characters developed for Willy the Wombat / Crash that were never used. One of them being a crocodile. Here's the design I'm referring to followed by the revised version based upon Naughty Dog's input. The later drawing is dated April 1995.
Also there was a shark I created for the first Crash game. This is what I posted last year followed by a design for a hammerhead shark of sorts dated March 1995. I don't know if the hammerhead design or if the second crocodile design has been published before but I'm sure I'll find out soon thanks to the Crash experts on the blog.