What kind of snail eggs are these.

 
 
Well this morning I found these eggs on my glass, I'm sure that they are snail eggs.  Here are some pictures above and below.  Does anyone know what kind these eggs are.

I've not seen ones that look like that before...Sorry can't help you.

Chad Penney - MBI Council
Agis quod Adis

What kind of snails do you have in your tank? I've not seen that specific egg "bundle," either, but I'd bet that we could get close.

--Andy, the bucket man.
"Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886

Wait a second. Do you have conchs?

--Andy, the bucket man.
"Not to know the mandolin is to argue oneself unknown...." --Clara Lanza, 1886

Nope no conches.  I have astrea, cerith, and some nerite snails.  I'm pretty sure that the eggs are cerith since I started off with 12 and now have 50.  That original egg clutch vanished, but I found another clutch on another wall of the tank.

I found this picture online, it is cerith snail eggs.  The eggs in this picture sort of match my clutch. 
http://www.google.com/imgres?imgurl=http://www.reefsanctuary.com/photopost/data/520/1cerith_eggs.jpg&imgrefurl=http://www.reefsanctuary.com/forums/reef-hitchhiker-id/4109-snail-eggs.html&h=450&w=600&sz=114&tbnid=ZG6c-I_a3Jaq2M:&tbnh=101&tbnw=135&prev=/images%3Fq%3Dpictures%2Bof%2Bcerith%2Bsnail%2Beggs&hl=en&usg=__xOR4aSpZzmdMfzFZn4lrrlAmaMA=&ei=Qva0S-naDsGBlAfg6KVJ&sa=X&oi=image_result&resnum=1&ct=image&ved=0CAYQ9QEwAA

I think they are round-ish ones