BUCEROTES 



The tendon of the tensor patagii longus ' gives off a 

 wristward slip ; the main tendon crosses the fore arm. 

 There is a cucuUaris patagialis, besides slips from the 

 pectoralis, but no biceps slip. 



The anconfcus has an attachment to the humerus. 



In the hind limb the formula of the muscles is the 

 typical picarian AXY . The passerine character shown by 

 the existence of a well-marked cucullaris prppatagialis is 

 paralleled in the hind limb by the absence of any vinculum 

 between the deep flexor tendons. 



The tongue is short and the intestines are without c'c-a. 

 The left carotid alone is present. 



There are fourteen cervical vertebra 1 . The sternum has 

 a single pair of notches or fenestrae and both spinae. The 

 skull is pseudo-holorhinal, desmognathous, without vomer 

 and basipterygoid processes. 



The conjoined maxillo-palatines are rather delicate fenes- 

 trated bones, and the bony palate for a little way in front 

 is somewhat vacuolate. The palatines have long postero- 

 external angles, which reach back to a point corresponding 

 to rather beyond the middle of the pterygoids. 



The lacrymals are small and ankylosed to the skull. 

 The ectethmoids are very large plates, and the distal end is 

 segmented off, and is apparently the equivalent of the 

 os uncinatum of many other birds ; it reaches the jugal. I 

 describe the nostrils as pseudo-holorhinal, because, though 

 rounded at their extremities, they are unusually long, and 

 reach, or very nearly reach, the ends of the nasal processes. 

 They are obliterated in the middle by bony alinasals. There 

 is a largish median ioramen 2 a little way above the foramen 

 magnum, and a minute one just above the latter. 



1 NITZSCH and GIEBEL, ' Zur Anatomic des Wiedehopfs,' Zeitschr. f. d. IJCN. 

 Natnrw. x. p. 236. 



2 This was present in only one of three specimens, in which also alone the 

 os uncinatum was present. It has a shorter bill and may be a different 

 species. 



