The first part I can answer easily (though I had to power on the unit to be sure), the second I haven't a clue on (the freq's they correspond to). Some of these definately aren't on standard VHF's (my other 2 don't get 00, 02, or 04 for example, nor many of the new a channels) and some are new (lettered chanels C, E, F, L, P).
Some busy weekend day next summer when I'm at the dock I'll scan the new channels and see if anyone is using them. I pretty much just ignore them for now.
I now have the following channels on this VHF (Icom M502 with expansion channels enabled) - (in this order of progression as you wheel through them, a "->" means I see all channels in this range):
00, 00a
01a -> 05a
06
07a
08
09a -> 19a
20, 20a -> 23a
24 -> 28
28a
29 -> 61, 29a -> 61a
62
63a -> 66a
67
77, 77a -> 83a
84 ->00, 83a -> 00a
and then it continues though with some different channels:
00 -> 16, 00a -> 16a
F1 -> F7
L1 -> L3
C1 -> C4
E1
P1 -> P3
** yeahah **