99 
UPPER MAMBIAL UALLERY. 
[Case 9.] 
[Cases 
9 cV' 9 A.] 
and all those inhabiting Madagascar, which agree in res[»ect to 
certain structural details of the internal ear. It is subdivided 
into the following subfamily groups : — 
The Imlrisimi’ or Sifakas, Imlris ( 171 ) and ProjntJiecKS ( 174 - 
184 ), characterized by their dispro})ortionately long hind-liin])S,. 
the toes of which are united by skin, and the possession of only 
do teeth. They are exhibited in case 0, and are singularly 
variable in colour, as may be seen by the mounted groups of the 
different species. When on the ground they move in an 
upright position, holding their arms over their heads in order 
to balance themselves, and progressing by short leaps in a most 
awkward and ludicrous manner. 
Fig-. 12. 
The Aye-aye [Chiromys madayascariensis). 
The true Lemurs, or Lemurina\ have the fore and hind limbs 
of nearly equal length, toes free to the base, and dG teeth. 
They are more quadru[)edal in their action than the last groups 
moving about both on the ground and in trees with great 
activity. Like the Sifakas, they are very variable in their 
coloration, being marked with various shades of red, brown, and 
black. Numerous specimens of the Ruffed Lemur, Lemur 
varius ( 200 ), are exhibited in the case, which also contains the 
Ring-tailed Lemur, L. catta ( 199 ). 
The third subfamily is represented by the aforesaid Aye-aye 
( 229 , fig. 12), a creature with only 18 teeth, large ears, a long 
[Cnsf' 
9 C'.j 
