Transfer Bootcamp over from a separate hard drive to a partition of a hard drive
If I read correctly you merely created a partition using bootcamp assistant, which essentially doesn't do anything but create an FAT formatted partition.
OS X will only show you bootable partitions (meaning partitions it finds a system on). You will first need to copy over your data, either including the system or reinstalling and moving over only certain data you want on the SSD.
If you want to do it 1:1 there's also tools like Winclone