538 DB. ST. GEORGE MiVABi ON !rai! [Feb. 4, 



the cup-like depression above noticed. Each lateral half of the 

 parahyal arch has, uiedianly, a gentle outward curve. 



The wohyal is decidedly longer than in the Lories, and consists 

 of tvfo parts — (1) a longer, proximal portion (u), which somewhat 

 expands to its termination, where it is truncated ; and (2) a very 

 much smaller distal portion (ud), about half the length of the 

 proximal part. 



It may well be that a distinct distal part of the urohyal also 

 existed in the species before described, but had become detached, 

 since as to several of them it was remarked that the urohyal was 

 truncated at the hinder end. . 



The entoglossum (e) differs greatly from that of the Loeiid^ 

 before described in that it is relatively, as well as absolutely, 

 much longer and more slender. Each lateral half, each entoglossal, 

 has the part in front of the isthmus, which joins it to its fellow, 

 more than twice the length of the part behind the isthmus. The 

 anterior parts of the two entoglossals are slender, curve outward 

 from each other towards their preaxial ends, and terminate almost 

 in a point. Just in front of the median bony isthmus the ventral 

 border of the entoglossal sends downward and outward a marked 

 process (al), the anterior lateral process ; behind this is a sharp 

 but very narrow concavity, bounded postaxially by a process {pi) 

 which extends slightly downward and much inward to join its 

 fellow of the opposite side, and so forms the concavo-convex 

 articular surface for junction with the concavo-convex articular 

 surface of the front end of the basihyal. 



The part of each entoglossal behind the isthmus curves a little 

 upward and inward, and then downward and outward, termi- 

 nating in a slightly rounded extremity. At the summit of the 

 curve there is a slight prominence {dl) on the dorsal margin, 

 which may be called the dorsal lateral process. 



The hypohranchials are about as elongated as in Lorius ', but 

 nearly straight. 



The ceratohranchials are about half length of the hypohranchials, 

 and are slightly curved concave mesiad. 



Thus the genus Nestor shows a very interesting, but hardly 

 surprising, affinity to the LoEiiDiE as regards the structure of 

 the hyoid. It has a parahyal arch, but that arch is remarkable 

 for its slenderness, as the entoglossals are distinguished by their 

 length and slenderness, and differ decidedly in form from those 

 of Eos, Lorius, and Tnchoglossus. Thus considered, the Nestors 

 may be thought to represent the Lories in the New Zealand 

 region. 



The interest I felt, however, in examining the hyoid of Nestor 

 was greatly exceeded when I turned to the examination of that of 

 Nanodes, formerly known as Lathamus. 



The true position of this species and its relationship or non- 

 relationship to the Lories have been matters of controversy, 



» P. Z. S. 1885, p. 1G8, fig. 3. 



