Tell me the exact format of usb flash drive?

I want to mount two usb drives and i need two different mount points Unfortunately, the Linux kernel underwent a name change and I can't figure out which /dev location is the right one. Is there a way to look through dmesg or /proc or somewhere else to find out which device node is a USB drive.

(I'm using ArchLinux if that helps any... /dev/sda is the first hard drive, /dev/sr0 is a dvd drive, etc.)

edit: The USB drive is connected to a USB hub. I looked through dmesg and it says the hub was connected and it scanned for the 3 devices connected to it. Still can't see where my USB drive is though.

Easiest way: Look at the output of dmesg after connecting the USB device. It should show you what /dev node was assigned to it.