Crumpets are very different where I come from. Look:
http://www.blinblue.com/uploads/crumpetsmall.JPG
Aren't those what we call Scotch Pancakes south of the border?
No. Crumpets are large and floppy (ooer) and have air bubbles in them.
Not here in the real world!
When I buy scotch pancakes I can get them with lemon in or sultanas. Crumpets are thicker with the little holes in like BK describes and pikelets are thinner, like scotch pancakes but a different texture more like a crumpet.