Snakes, Insects, Rats, Ants...and....
...eels.
I suppose you have to give Indiana Jones 5 SOME points for making sure to include some sort of "icky creatures" to follow the lead of the four movies before it.
That said, the CGI underwater eels in Dial of Destiny are rather rushed and murky in their attack...they are on, then they are off. The snakes in the first(and best) Indy Jones movie were given a LOT of screen time and plot involvement.
I wonder: did the entire "Indy at sea with Antonio Banderas" nautical part of Indy 5 come about BECAUSE they decided to use underwater eels as the creatures this time?