Falconid^e.] 



OSTEOLOGIA AVIUM. 



[Aquiline. 



the posterior margin indented by two small foramina. The bones of the body are in the 



British Museum. 



Measurements. 



Tenths. 



Length of humerus 



Length of ulna 



Length of radius 



Length of metacarpus . . . . . 



Length of femur 



Length of tibia 



Length of metatarsus 



Length of sternum 38 



Tenths. 



Breadth of posterior margin of sternum 17 

 Breadth of anterior margin of sternum 18 



Depth of keel 8 



Length of head 



Breadth of head 



Length of pelvis 40 



Breadth of pelvis 18 



Gekanoaetus, Kaup. 



Melanoleucos, Vieill. 

 Similar to the other Fishing Eagles ; the sternum has a foramen on each side of the 

 posterior margin. The skeleton is in the British Museum, under the name of Halia'etus 

 aguia. 



Measurements. 



Tenths. 



Length of humerus 60 



Length of ulna . ' . . , . . . . 72 



Length of metacarpus 34 



Length of femur 42 



Length of tibia 59 



Length of metatarsus 42 



Length of sternum 39 



Tenths. 

 Breadth of posterior margin of sternum 25 



Breadth of anterior margin of sternum 21 



Depth of keel 11 



Length of head 44 



Breadth of head 25 



Length of pelvis 42 



Breadth of pelvis 21 



Helotaesus, Smith. 



Ecaudatus, Baud. 

 Similar to Halia'etus, but with the sternum and pelvis longer ; a foramen on each side 

 of the posterior margin of the former. The specimen is in the British Museum. 



Measurements. 



Tenths. 

 Breadth of posterior margin of sternum 24 

 Breadth of anterior margin of sternum 22 



Tenths. 



Length of humerus 60 



Length of ulna 77 



Length of metacarpus 30 



Length of femur 33 



Length of tibia 49 



Length of metatarsus 29 



Length of sternum 44 



16 



Depth of keel 10 



Length of head 41 



Breadth of head 23 



Length of pelvis 46 



Breadth of pelvis 18 



