Baby Conches?

[Guest Keyoke]

What is the life cycle of a Queen Conch? What do they look like when they are babies?

 

I think I've got two baby queen conches that just appeared.. which is kinda weird, since I only have a single Queen in my tank. What's the gestation period?

 

I'm trying to get a decent pic.. They are a greyish green color, a large rounded shell that's the same color, though has some lighter patches on it. The foot is about 2x the size of the shell. At the front of the opening, there are what looks like two short stalks with black pupils on it. There are two longer stalks, antennae or feelers, and a small conch-like-trunk, but unlike a full grown conch the snout/trunk is a lot shorter tho definatly a distictive trunk.