IMCAIUJ;. 



and may therefore belong either to the Titrdkhe or 

 AlaiuUdic. It is larger than the humerus of Lanius 

 niloatnius of the Lower Miocene of Allier. 



Purcliased, 1884. 



Suborder II. PICARIyE. 



An ill-deflned group of aegithognathous or desmognathous birds 

 wiMi variable foot-structure ; some forms having the fourth (rarely 

 the second) digit directed backwards with the haUux, and others 

 only the hallux so directed. 



The humerus of this suborder may be distinguished from that of 

 the Passeres by the absence of the median tubercle on the palmar 

 aspect of the distal extremity, and by the circumstance that if an 

 ectepicondylar process is present it has no notch ; the impression 

 of the brachialis anticus may be either median or lateral. The 

 intermetacarpal plate in the metacarpus may be present or absent. 



The tarso-metatarsus and tibio-tarsus are subject to great varia- 

 tion ; the extensor bridge of the latter being wanting in the 

 Buccrotidie. 



PlCAEIJJ Ol-' UXCEETAIX GeXEEIC roSlTIOX. 



Gexis a. 



42683. 



Two right humeri ; from the cavern-deposits of the "Wel- 

 lington Valley, New South Wales. These specimens, of 

 which the length is 0,0:J4, are very slender, with a large 

 tricipital fossa ; no ectepicondylar process, and a lateral 

 surface for the brachialis anticus. They belong, in all 

 probability, to an existing genus and species. 

 Presented by iJie Trustees of the AusiraUan Museum, 1871. 



43079 a. A similar right humerus ; from the Wellington Valley. 



Presented ly the Trustees of the Australian Museum, 1871. 



Gexus b. 



A. 135. The left humerus; from the Phosphorites of Bach, near 

 Lalbenque (Lot), France. This specimen (fig. 3), which 

 has a length of 0,027, agrees with the humerus of Mega- 

 hima in its shortness and expanded proximal extremity. 



