Stedman's Medical Dictionary.
1. One of the long bones of the digits, 14 in number for each hand or foot, including two for the thumb or great toe, and three each for the other four digits; designated as proximal, middle
, and distal, beginning from the metacarpus.http://www.medilexicon.com/medicaldictionary....
The text from Wiki, next to the diagram:
"Human hands contain fourteen digital bones, also called phalanges, or phalanx bones: two in the thumb (the thumb has no middle
phalanx) and three in each of the four fingers. These are the distal phalanx, carrying the nail, the middle
phalanx, and the proximal phalanx."http://en.wikipedia.org/wiki/Hand
Irrespective of Google hits and the Wiki diagram, I have used "middle" ever since I learnt anatomy. The two anatomy books currently on my shelves (I don't have a copy of Gray's handy) say "middle". I have no intention of changing now :-)