| Total length | 80 | mm. |
| Width at proximal extremity | 11 | " |
| Width at distal extremity | 13 | " |
| Width at smallest part of shaft | 6 | " |
Messrs. Gadow and Newton give the length of their tarso-metatarsi as 81 mm., of their tibiae as 117 mm., and of the metacarpals as 55 mm.
Habitat: Mauritius.
Seven tarsi in the Tring Museum.
HARPAGORNIS HAAST.
Allied to Aquila, from which it is distinguished by the ulna being relatively shorter and the tarso-metatarsus stouter.
HARPAGORNIS MOOREI HAAST.
Harpagornis moorei Haast, Trans. N.Z. Inst. IV, p. 192 (1872).
Description of femur (from Haast): The cylindrical shaft bent forward, and above the distal extremity it is slightly curved back. The hollow on the top of the head is very large and measures .42 inch across.