Snail Eggs Scattered - I D Snails Please :)

[NeonBlueLeon]

So my recently purchased snails were mating the other day, and today I've noticed what looks like eggs scattered around the tank.  Can anyone help me ID these snails?  The LFS that I bought them at called them mystery snails.
 

Eggs on fake plant.
 

Eggs on a live plant.  Sorry for bad editing.  It look worse before I edited it, I promise.
 

Mating! Was it creepy of me to take a picture of them mating?
 

Cool design on shell, but not sure what they are.
 

Here's the other snail.  Any help ID-ing is appreciated!

 

[Wildbetta]

Those appear to be ramshorn snails.  They are great to have in my opinion because they are great algae eaters.  They can reproduce very quickly and over run a tank if given the right conditions though just like pond snails.  Mystery snails are much bigger and lay there eggs in clutches that look like a sack up above the water level.

 

[NeonBlueLeon]

Those appear to be ramshorn snails.  They are great to have in my opinion because they are great algae eaters.  They can reproduce very quickly and over run a tank if given the right conditions though just like pond snails.  Mystery snails are much bigger and lay there eggs in clutches that look like a sack up above the water level.

Yes that's what bothered me.  While researching mystery snails, I noticed their eggs looks quite different than what I've got.  And about overrunning a tank... it's happening.  I've got another three in my 20 gallon and there are eggs EVERYWHERE.  Yikes...