Hutton. — On New Species of Moas. 



graphical distribution, are, I think, sufficient to constitute 

 distinct species. 



At Enfield most of the metatarsi had a length of about 

 ll'75in. (298mm.), but one pair measured only lTOin. 

 (289mm.), with the shaft as broad as in the larger birds. This 

 small individual may perhaps have been of the opposite sex 

 to the larger individuals ; but intermediate sizes were found, 

 both at Hamilton's and Grleumark. 



The average dimensions of the bones obtained at Enfield 

 will be found in the table at the end of the paper. 



Anomalopteryx fortis. 



The bones on which I found this species are three meta- 

 tarsi, a tibia, and three imperfect femora from Glenmark. 

 The metatarsus has a length from 8 - 3in. to 7 - 8in. (208mm. to 

 198mm. : width at the proximal end, 2 -Tin. to 2-4in. (6Smm. to 

 61mm.) ; at the middle of the shaft, l-5in. (38mm.) ; and at the 

 distal end, 3*6in. to 3 - 3in. (91mm. to 84mm.). It is remarkable 

 for the shaft not tapering downwards ; for the slight expansion 

 of the proximal end ; and for the existence of a considerable 

 depression on the anterior surface of the middle trochlea near 

 its base. The intercondylar ridge is high and the depressions 

 nearly equal in depth ; the inner margin of the entocondylar 

 depression is fiat and without a median ridge ; the hypotarsal 

 ridges (talon) are subequal. The trochlear resemble those of 

 A. didiformis, but the intertrochlear gorges are still more ex- 

 panded at the bottom. These metatarsi are easily distin- 

 guished from those of Mesopteri/x casuarina by the slightly- 

 expanded proximal end, and by the remarkable depression on 

 the anterior face of the middle trochlea. In both these points 

 they resemble the metatarsi of A. didiformis ; but in that 

 species the depression is not nearly so well marked and the 

 metatarsi are much smaller. 



