Sorry, Pixel, my brain left the building this afternoon, and I cannot think what they are called - but they are black lumps, like your photo, difficult to remove or break, and they are filled with blood. They DO have a name, and they are not a problem. That is what it looks like - however, I would still go to the vet. Make sure he aspirates it.
Incidentally, ticks have legs, and if you suspect a tick, get a magnifying glass and check it out for legs!!
hrm....too young for lumps and bumps yet
Unlikely, but not impossible. Unfortunately, a lot of lumps look and feel like other varieties of lump - some are just harmless things dogs get, and some are horrible nasties. Often the vet can't tell the difference either, so it's worth checking out.
There are lumps which are easy to identify as x or y - but that one is a bit of a poser.