MoTACILLIDiE.] OSTEOLOGIA AVIUM. [ANTHINiE 



Anthus, Bechst. 



Obscurus, Gm. 



Similar to Motacilla, but with the metatarsi shorter in proportion to the tibiae. 

 Anthus Australia and Pratensis are also similar. 



Sylvia, Lath 



Hippolais, Linn. 

 The Syhiadce present very few tangible characters to distinguish them from the 

 Motacillidce, and one description, independent of measurements, will almost serve for 

 the whole of the family ; they may, however, be distinguished from the latter family by the 

 greater proportionable breadth of the pelvis and sternum, and the very small amount of 

 devarication between the branches of the furculum. Between the members of the family 

 the form of the skeletons run still nearer ; there are, however, a few that may be pointed 

 out. It would be useless to go through a series of measurements and take up a large 

 space, I shall, therefore, merely give a list of the species belonging to the family which 

 I possess, and mention where any characters occur differing from the bird above- 

 named. 



Illustration. 

 Skeleton, Plate V. F. 



Lucinia, Linn. 



Philomela, Bon. 



Illustrations. 



Palatine bones, sternum, pelvis, and metatarsi, Plate XVII. 



Salic aria, Selby. 



Locustella, Penn. 



Salicaria, Selb. 



Phragmitis, Linn. 



Ruticilla, Brehm. 



Phcenicurus, Linn. 

 The pelvis is rather broader in proportion to the size of the bird. 



Kuticilla, Brehm. 



Tythys, Scop. 



Eegulus, Linn. 



Auricapillus, Linn. 

 114 



