BuceERip&. | OSTEOLOGIA AVIUM. 
[| EURYCEROTIN&. 
Coracoids long, broad at their junction with the sternum, rounded in the middle. 
Scapule long, much deflected. 
Ribs weak, expanded at their dorsal extremities. 
Wing bones long. 
Tarst long. 
Toes long, the too outer anterior ones united; vertebree short. 
Measuremenis. 
Tenths. | 
Wen otheor MUIertIs )e sewee ree aelel Breadth of posterior margin 
Ieeneth ior umab ea. G0) eee. ae ekO Breadth of anterior . 
Wenethvorradius — fe) - tious alee margin of ditto 
Length of metacarpus. .. .. 9 Depth of keel . 
uenothaotstemur 6 4: cl ae areeey soll Length of head 
tencthsor tibia . 9... 5 See vee lO Breadth of head . 
Weneth iol metatarsus ~~ 2 9 LT Length of pelvis . 
Wemeth ofsternum. . s+) = . 13 Breadth of pelvis 
Tenths. 
10 
From the above description it will be perceived that this bird presents no affinity what- 
ever to. Rhamphastide or Sternide, From the first family it differs in the shape of the 
sternum, and from the last in almost every part, particularly in the structure of the 
sternum and the palatine bones. In all these particulars it agrees with Buceros, and 
also in the form of the pelvis and furculum. 
Illustration. 
Sup. 2, pl A. 
Details, pl. 1. 
