238 DR. ST, GEORGE MIVART ON THE [Feb. 4, 
the cup-like depression above noticed. Tach lateral half of the 
parahyal arch has, medianly, a gentle outward curve. 
The urohyal is decidedly longer than in the Lories, and consists 
of two 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 Lormpa# 
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 
ina 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 (pl) 
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-conyex 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 (d/) on the dorsal margin, 
which may be called the dorsal lateral process. 
The hypobranchials are about as elongated as in Lorius', but 
nearly straight. 
The ceratobranchials are about half length of the hypobranchials, 
and are slightly curved concave mesiad. 
Thus the genus Nestor shows a very interesting, but hardly 
surprising, affinity to the Lorimp# 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 Trichoglossus. 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, 
1 P.Z.S. 1885, p. 168, fig. 8. 
