None, unfortuantely. No pets are allowed in the Dorms (including my snake, even though he would stay put in his tank and not bug anyone)
Haha, I know what that's like. Finally out of that place. In an apartment with 2 dogs, a rabbit and my fishies.
But I'm a bad grrl, I kept pets in the dorm when I did stay in one. Had my rabbit last year, and the year before I had a snake and 2 geckos. *shh!* don't tell anyone! *giggles* Nobody knew but my roommates and friends. I'd not recommend it. Not sure what the consequences at your school is, but here they make you get rid of the animal and then make you write a paper about the rule. My mate got caught with a snake and had to do that.
I was honestly considering sneaking my snake in, but my roommate wasn't a fan (but he (the snake) is doing fine at my science teacher's room, and I'll get him back in the summer). And I'm not sure what the consequences are for having one in here, but I'd rather not risk it since it could be me getting kicked out (and I was really lucky to get this room, I don't wanna risk it).
So, for the moment, I'm pet-less. 'Tis an empty feeling, don't care for it but it's something I gotta do.