THE GENERAL SUBJECT. 
7 
subfamilies, and lists of the genera, reeent and extinet. We 
must refer the reader to the paper itself for a table in whieh the 
primary groups are so arranged that their mutual relations may 
be readily understood, and which will also serve as a genealogical 
table for those who accept the doctrine of evolution. The sys- 
tematic arrangement is as follows : — 
I. Subclass MONODELPHIA. 
A. Superorder Educabilia. Brain with a relatively large cere- 
brum, behind overlapping much or all of the cerebellum, and in 
front much or all of the olfactory lobes; corpus callosum (attypically) 
[s/c] continued horizontally backwards to or beyond the vertical of 
the hippocampal sulcus, developing in front a well-defined recurved 
rostrum.” 
* Educabilia QUADKirEuiA [s/c]. 
t Primate series. 
Order : 1. Primates, 
t Feral series. 
Order : 2. Ferae, 
t Ungulate series. 
Orders ; 3. Ungulata. 4. Toxodontia. 6. Ilyracoidea. 6. Pro- 
boscidea. 
* Educabilia mutilata. 
Orders : 7. Sirenia. 8. Cete. 
B. Superorder Ineducabilia. Brain with a relatively small cere- 
brum, leaving behind much of the cerebellum exposed, and in front 
much of the olfactory lobes; corpus callosum extending more or 
less obliquely upwards, and terminating before the vertical of the 
hippocampal sulcus, with no well-defined rostrum in front.” 
t Insectivorous series. 
Orders: 9. Chiroptera. 10. Insectivora. 
t Rodent scries. 
Order : 11. Glires. 
t Edentate series. 
Order : 12. Bruta. 
II. Subclass DIDELPHIA. 
Order : 13. Marsupialia. 
HI. Subclass OBNITHODELPIIIA. 
Order : 14. Monotremata. 
SlMIIDiE. 
Troglodytes niger. BischolF describes and figures the brain of a four-year- 
old specimen. It seems that the development of certain superficial folds is 
subject to variation according to age and individuals. SB. Bayer. Ak. 1871, 
pp. 98-105, with 3 plates. — On the muscles and nerves, F. Ohampneys, J. 
Anat. & Physiol. 1871, pp. 176-211.— On some points in the myology of the 
Chimpanzee and others of the Primates, A. Macalister, A. &M. N. II. 1871, 
vii. pp. 341-351. 
