This addon is aimed to add simple, but not so boring nautiluses to the game. Now, it features 2 extant nautilus species, the chambered nautilus and the 'fuzzy nautilus'. It also has some additional, experiment-like animals.
Select version for changelog:
Changelog
Mediafire link added to Mcpedl
(Extra words to fit 10 word limit)
Did you found one ?
Oh and your addon is really cool !