Stbkhm:.] OSTEOLOGIA AVIUM. [BlTBONINiE. 



indented with two fissures on each side of the keel ; the outer one largest, and the inner 

 one placed rather obliquely ; anterior edge of the keel receding very much ; manubrial 

 process rudimentary. 



Measurements. 



Tenths. 



Length of sternum 15 



Breadth of posterior margin of sternum 12 



Tenths. 

 Breadth of anterior margin of sternum 12 



Number of Vertebras and Bibs in Raptoees. 



Cervical. 



Dorsal. 



Sacral. 



Caudal. 



True ribs. 



False ribs. 



Falconidse. 



Accipiter nisus 



Palco peregrinus 



Milvus migrans 



Ibycter ater 



Aquila nsevia 



Haliastur ponticerianus 



Oymindis uncinatus 



Ieracidea berigora 



Pandion baliaetus 



Circaetus brachydactylus 

 Accipiter torquatus ...... 



Palco sesalon 



Palco subbuteo 



Tmnunculus alaudarius 



Haliaetus aguia 



Helotarsus ecaudatus ... 



Falco aurantius 



Asturina magnirostris ... 



Astur palumbarius 



Buteo vulgaris 



Vultnridse. 



Sarcorampbus Grryphus 



Sarcorampbus Papa 



Cathartes aura 



Serpentarius reptilivorus 

 Neophron percnopterus 



Polyb orus tharus 



Gryps fulvus 



Gypaetos barbatus 



Strigidse. 



Ketupa javanensis 



Nyctea nivea 



Otus brachyotus 



Bubo bengalensis 



Athene m armor ata 



Strix flammea 



Nyctale Tengmalmi 



Strix delicatulus 



Athene hypudea 



Bubo maximus 



11 

 11 

 11 

 11 

 11 

 11 

 13 

 10 

 12 

 12 

 11 

 12 

 13 

 12 

 13 

 12 

 12 

 11 

 12 

 12 



13 

 13 

 13 

 13 

 12 

 10 

 16 

 15 



12 



12 

 10 

 11 

 12 

 9 

 12 

 12 

 13 

 12 



9 

 10 

 10 

 8 

 9 

 10 

 10 

 12 



9 

 10 



10 

 9 

 9 



13 

 10 

 10 

 12 

 10 

 11 

 10 

 12 

 12 

 12 

 10 

 11 

 12 

 11 

 11 

 12 

 11 

 12 

 10 

 12 



10 

 10 

 12 

 12 

 12 

 12 

 14 

 12 



13 

 13 

 11 

 12 

 13 

 14 

 12 

 13 

 10 

 12 



7 

 8 

 7 

 8 

 wanting 



5 

 5 

 6 



6 

 7 

 7 

 6 

 6 

 6 

 6 

 6 

 6 

 5 

 6 

 6 

 6 

 6 

 7 

 6 

 6 



3 

 3 



3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 2 

 3 

 2 

 2 

 3 

 3 



VOL. I. 



33 



