RALLIDiE.] OSTEOLOGIA AVIUM. {Ta-RRINJE. 



Pelvis similar to the Ardeince. 



Furculum similar to PlatglcBa, but with a small notch at the junction of the rami. 



Sternum with one rather large fissure on the posterior margin on each side of the 

 keel, in shape similar to the herons ; keel of moderate depth, slightly bifid, strong ; a 

 small manubrial process. 



Scapula arched, tapering gradually to the hinder extremity. 



Wing-bones having the ulna longer than the humerus. 



Leg^bones with a groove extending for the whole length both in front and behind ; 

 calx small ; hind toe very small. 



Measurements. 



Tenths. 



Length of humerus 72 



Length of ulna 77 



Length of metacarpus 32 



Length of femur 32 



Length of tibia 125 



Length of metatarsus 115 



Length of sternum ...... 47 



Illustrations. 

 Skeleton, Plate IV, K. 



Tenths. 



Breadth of posterior margin of sternum 20 

 Breadth of anterior margin of sternum 26 



Depth of keel 12 



Length of head ....... 71 



Breadth of head . ...... 14 



Length of pelvis 65 



Breadth of pelvis 28 



Palatine bones, sternum, pelvis, and meta- 

 tarsus, Plate XXVIII. bis. fig. 2. 



Parra, Linn. 



Cordifera, Less. 



Cranium. A slight channel above, between the orbits, and a transverse one imme- 

 diately behind them ; orbital ridge well marked, the protuberance slightly so; orbital 

 septum represented by a slight strip of bone intersecting it horizontally. Palatine 

 bones of moderate width, the margins deflected, rounded at their junction with the 

 interarticulars, and gradually narrowed forwards. 



Sternum rather long, narrow for about half its length, then suddenly expanded to 

 the hinder margin, which has two fissures, one on each side of the keel, the end of the 

 splint bounding the fissures expanded ; keel deep, slightly scolloped out on the anterior 

 edge, with a small manubrial process. 



Pelvis small, narrow ; ischiadic and obturator foramina large, os pubis projecting 

 only very slightly beyond the ischium. 



Furculum having the rami, which are flattened, compressed towards one another, 

 with a very small process at their junction. 



Scapula slightly expanded near the distal end, and then sloped off to a point. 

 198 



