Altocumulus lenticularis?

Spotted these lovely 'blobby' clouds on my way home from work and thought I'd try and capture them. By the time I'd fiddled about experimenting with filters and settings the best of them had passed, but I thought this shot was quite interesting.
I have a cloud book (geeky?) and Altocumulus lenticularis is the type of cloud I think they are.