Oriolidje.] osteologia avium. [Sterninje. 



Oriolus, Linn. 



Nigripennis, Verr. 

 Similar to the foregoing in all respects but in being rather smaller. 



Stern us, Linn. 



Vulgaris, Linn. 



Type. 



Very similar to Oriolus, but differs in having the sternum longer in proportion to its 

 width, and the keel deeper, the ischium more perpendicular to the plane of the ilium, 

 and in the tibia being longer in proportion to the femur. 



Measurements. 



Tenths. 



Length of humerus 10J 



Length of ulna . . . . . . . 12 



Length of metacarpus .... 7 



Length of femur 10 J 



Length of tibia 16 J 



Length of metatarsus 1 1 J 



Length of sternum . 12 



Tenths. 



Breadth of posterior margin of sternum 8 J 

 Breadth of anterior margin of sternum 6 



Depth of keel 4 



Length of head 18 



Breadth of head 6 \ 



Length of pelvis ...... 13 



Breadth of pelvis 7 \ 



Lamprotornis, Temm. 



Cantor, Gm. 



Similar to Sturnus, but has the palatine bones broader, and the manubrial process of 

 the sternum shorter. 



Lamprocolids, Lund. 



Purpuriceps, Verr. 



Similar to the foregoing, but with the sternum rather longer in proportion to its 

 width, and the pelvis broader. 



Pastor, Temm. 



W. Australia. 

 Very similar to Sternus, but has the manubrial process much shorter, the inferior 

 edge of the keel more arched, and in the ischium not being placed quite so perpen- 

 dicularly to plane of the pubis. 



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