SCOLOPACIDJE.] OSTEOLOGIA AVIUM. [TANTALINJE. 



Sternum similar to that of Ibis. 



Pelvis with the foramina very large, and also in shape similar to Numenius. 

 Leg-bones. Supplementary metatarsal bone twisted on its axis ; calcineal process 

 very short. 



Measurements. 



Tenths. 



Length of humerus 45 



Length of ulna 50 



Length of metacarpus 25 



Length of femur 21 



Length of tibia 45 



Length of metatarsus 29 



Length of sternum 32 



Tenths. 



Breadth of posterior margin of sternum 16 



Breadth of anterior margin of sternum 25 



Depth of keel 12 



Length of head . . . . . .■•-. 66 



Breadth of head 12 



Length of pelvis 43 



Breadth of pelvis 19 



Illustrations. 



Skeleton, Plate VII. K. 



Sternum, pelvis, palatine bones, and meta- 

 tarsi, Plate XXXIV. fig. 2. 



Threskiornis, G. JR. Gray. 



Melanocephalus, Lath. 



Cranium similar to Harpiprion Hagedash, but with the inferior maxillary not so much 

 prolonged backwards ; in other respects similar. Rami of the furculum much arched, 

 and uniting at a very blunt curve, with no vestige of a process at their junction. 



Pelvis similar to Hagedash, but with the foramina not so large. 



Tantalus, Linn. 



Ibis, Linn. 



I have only the cranium of this bird. The occipital ridge is very prominent, the 

 impression for the masseter muscles very deep. Palatine bones with the lateral edges 

 very much turned downward, very strong, only widened for about an inch of their 

 length from the interarticular bones, afterwards becoming a straight, flattened strip of 

 bone. Interarticular bones slightly twisted on their axis ; nostrils very small. Inferior 

 maxillary bone truncate, and triangular on its proximal end, not prolonged beyond 

 the condyle ; processes on each side of the foramen magnum similar to those in 

 Hagedash. 



Psophia, Linn. 



Viridis, Spix. 

 Cranium. Occipital ridge small, but well defined; orbital septum with two 



2h 189 



