Lydekker, Cat. Fossil Birds in Brit. Mus., p. 252, under _M. tenuipes_
(1891).
The type is a left femur, No. 32145 in the British Museum. It is smaller
and relatively narrower than the femur, of either _M. hectori_ or _M.
tenuipes_. This is most noticeable at the distal extremity.