Here is a nice detailed table I made in Beta.
SL Spirit Types Table by Munkeezon
It has columns for:
1) Spirit Type
2) Body Part it goes on
3) DB ID for cross reference in http://aomainframe.info
4) Checkboxes for what that Spirit affects in the Abils, Body, Melee, Speed, and so forth sections of your skills set.
I will attempt to keep this fairly up to date. Though it likely won't be changing too much even though we see issues with inconsistent naming, unused skills and so forth at the moment. But if it does, or if you see an error please feel free to let me know.
The add damage I abbreviated on a little.
Enjoy,
-- Munkee
[EDIT - Excel seems to be unfriendly to Netscape (go figure ) formatting. Use Internet Explorer for table until I figure out an alternate way. Got any ideas?]