TuRDID.35.] 



OSTEOLOGIA AVIUM. 



[Turdin_;e. 



foramen ; masseter impression very slight. The palatine bones consist of a slight strip 

 of bone expanded near their hinder extremities, and slightly bent downwards. 



Pelvis very broad ; obturator and ischiadic foramina large. 



Sternum with the posterior margin very much rounded, with two large fissures, one 

 on each side ; the strips of bone bounding the outer edges of the fissures do not project 

 so far back as the edge of the central portion of the sternum. 



Wing-bones very short; the ulna longer than the radius. 



Metatarsi of moderate length, with a slight keel down their posterior edge. Altogether 

 the skeleton of Turdus very much resembles that of Lanius. 



Measurements. 



Tenths. 



Length of humerus ..... 9J 



Length of ulna 1 1 J 



Length of metacarpus 6 J 



Length of femur 10 



Length of tibia 17 



Length of metatarsus 13 



Length of sternum 14 



Tenths. 



Breadth of posterior margin of sternum 8 J 

 Breadth of anterior margin of sternum 6 



Depth of keel 4 



Length of head 17 J 



Breadth of head 7 



Length of pelvis ..'.... 14 

 Breadth of pelvis 8J 



Illustrations. 

 Turdus, Chochi, Plate VII. F. 



T0rdus, Linn. 



Torquatus, Linn. 

 Turdus, Chochi, Pilaris, and Carbonarius are all similar to the foregoing, except in 

 measurements. 



CoLLURIOCINCLA, Vlff. fy Horsf. 



Selbii, Gould. 

 Cranium slightly more flattened from the vertex to the bill than in Turdus. In other 

 respects similar. 



Measurements. 



Tenths. 



Length of humerus 11 



Length of ulna 12 



Length of metacarpus 6 



Length of femur 11 



Length of tibia ....... 18 



Length of metatarsus ..... 13 



Length of sternum 11 J 



130 



Tenths 



Breadth of posterior margin of sternum 8 

 Breadth of anterior margin of sternum 6 



Depth of keel 4 



Length of head 22| 



Breadth of head 8 J 



Length of pelvis 12 



Breadth of pelvis 10 \ 



