eS ———e—e——————EeEee rr rm cre eee 
203 
in different degrees and by different means and sides, chiefly as 
exemplified in the following table :— 
AVES. 
1, ALTRICES (Insessores). 2. PRASCOCES (Grallatores). 
1. Psrrract. 
2. ACCIPITRES. 
3. PAssEeREs. 
a. OscINES. 
b. VoLucrEs. 
4. CoLUMBz. 
a. INEPTI. 8. STRUTHIONES. 
b. GYRANTES. 9. GALLINZE. 
Flint ae. 10. ANSERES. 
a. TOTIPALMI. a. LAMELLIROSTRES. 
5. LONGIPENNES. 6. URINATORES. 
6. Heropiones. 7. GRALLZ: 
a. ALECTRIDES. 
6. CuRsoREs. 
2. ON THE CHANGE oF CoLouR 1N a CHAMa&LEON (CHAMa- 
LEO VULGARIS). By H. N. Turner, Jun. 
Notwithstanding that the peculiarity of the Chameleon in changing 
its colour is so universally known, and that an illustrated work 
on the subject was published by Van der Héven, I have thought that 
a careful record of the varieties of tint, presented by the specimen 
which has lived for some time in my possession, might prove ser- 
viceable to the naturalist if compared with similar observations upon 
other species and upon the same one under different circumstances, 
and might also assist in the determination of the means by which it 
is effected, the influences by which it is regulated, and the objects 
which it serves in the ceconomy of the animal. 
Its general tints vary between different shades of brown, olive, yel- 
low, and light green, the last-named being the most rarely observed, 
and the yellow being the tint usually assumed when the animal has 
been hidden from the light. This is the colour it always presents if 
taken for inspection at night, and when brought into the influence of 
lamp-light it appears at first almost white, but may soon be seen to 
darken and some of the markings to appear. The side that is next 
the light will change rather sooner than the other, the changes being 
always gradual. It has three distinct sets of markings, the first to 
appear being two ranges of irregular distant elongated spots, which 
may appear either as a dark tint upon the ground-colour when that 
is light, or a light one if it be dark. These marks are never entirely 
absent when either of the other sets is present, although sometimes 
but faintly discernible. 
