ArDEIDJE.] OSTEOLOGIA AVIUM. [ClCONINvE, 



Illustrations, 

 Sternum, pelvis, palatine bones, and metatarsi, Plate XXIX. fig. 2. 



Ciconia, Linn. 



Alba, Briss. 



Cranium. Occipital ridge sharp and prominent; impression for the reception of the 

 masseter muscles very well marked ; orbital septum with one foramen. Palatine bones 

 broad, posterior part for the length of one inch with both edges turned downwards ; 

 posterior edges curved abruptly to the interarticular bones, the anterior portion flat- 

 tened horizontally, and gradually tapering ; the ethmoid bones plainly visible through 

 the orbits; nostrils small; inferior maxillary bone truncate, and triangular at the 

 hinder extremity, and not prolonged beyond the condyle. 



Sternum much broader and shorter than among the Gruince, with a large, open, 

 shallow fissure on the posterior margin ; keel deep, arched below, the anterior point 

 projecting very much forward to the junction with the furculum; anterior edge 

 slightly scolloped out. Manubrial process wanting. 



Pelvis similar to that of Balearica, but with the anterior portion much broader ; 

 obturator and ischiadic foramina large, without the rounded foramen below the 

 acetabulum ; os pubis continued beyond the ischium. 



Bibs of moderate strength ; styliform processes nearly horizontal, blunt at the ends. 



Furculum strong, very much arched ; a process at the junction of the rami, which 

 appears to be anchylosed to the sternum, flattened perpendicularly. 



Scapula slightly arched, tapering towards the hinder extremity, which is blunt. 



Wing-hones long, the ulna much longer than the humerus ; metacarpus also very 

 long. 



Leg-bones similar to those of Balearica. 



Measurements. 



Tenths. 



Length of humerus , . . . , 79 



Length of ulna 97 



Length of metacarpus 43 



Length of femur 37 



Length of tibia 96 



Length of metatarsus 90 



Length of sternum 47 



Tenths. 



Breadth of posterior margin of sternum 21 

 Breadth of anterior margin of sternum 22 



Depth of keel 19 



Length of head ....... 105 



Breadth of head 17J 



Length of pelvis 52 



Breadth of pelvis 29 



Illustrations. 



Metatarsi, palatine bones, sternum, and pelvis, Plate XXXI. fig. 2, 3, 



Leptophilus, Less. 



Argala, Lath, 



2 i 193 



