Parrotfish ID help please

So is this guy going through a strange phase or am I. I think I've been in the desert too long. I know your going to tell me it's easy and I've seen it hundreds of times but I don't know the proper scientific name.

Roatan, Honduras

Also first attempt at embedding from Flickr

Haven't figured out how to link back yet.

Steve

A bit difficult to tell from this pic - have you any others? My best bet at this stage is an intermediate phase stoplight parrotfish - Sparisoma viride

Was this photograph taken during the day or at night? Many fish look very different at night than they do during the day....

Thanks for looking guys. Taken at night, off Roatan, about 40ft. He (or she) was tucked in under a coral shelf getting ready for some sleep. This is the only image I have. It was taken in 98, on velvia 50, Nikonos 35mm with closeup lens, and I didn't want to hit her more than once with the big 102 strobe. Learned something new, again, I didn't know parrots changed their apperance at night. I couldn't find anything close on the Fish search data base.

Steve