Messrs. Milne-Edwards & Grandidier state at pages 180-181 that the bone (a portion of a femur) which is the type of the above name, had a shaft-circumference of 120 mm., while in Ae. medius this circumference was 215 mm., and in Ae. grandidieri (= maximus auct. nec. Geoffroy), it was 270 mm.
Type locality: Amboulitsate, in West Madagascar.
MULLERORNIS MILNE-EDWARDS & GRANDIDIER.
Birds of medium size, not having the heavy and massive build of Aepyornis. They appear to resemble more closely the Casuaridae. Known only from leg bones.
Number of species: 2.
MULLERORNIS BETSILEI MILNE-EDW. & GRAND.
Mullerornis betsilei Milne-Edwards and Grandidier, Compt. Rend., CXVIII, p. 125 (1894).
Original description as follows:—"The leg bones are slender, the tarso-metatarsus is not enlarged as in the preceding genus, and the section through the shaft shows almost an isosceles triangle. The bone itself having more the proportion of Dromaius.
| "Length of tibio-tarsus | 390 | mm. |
| Circumference of tibio-tarsus | 90 | " |
| Width of tibio-tarsus | 30 | " |
| Width of proximal end | 75 | " |
| Width of distal end | 60 | " |
| Length of tarso-metatarsus | 310 | " |
| Circumference of tarso-metatarsus | 80 | " |
| Width of shaft of tarso-metatarsus | 27 | " |
| Width of proximal end | 70 | " |