258 MR. F. E. BEDDARD ON TAPIRUS TERRESTRIS. [May 7, 
There seems to be no doubt that the cerebral convolutions are 
simpler in Zapirus than in the other types; on the other hand, it is 
well known that the brains of smaller animals are more simple in their 
convolutions than those of their larger allies. This generalization, 
however, hardly applies to the Perissodactyla; Ceratorhinus suma- 
trensis, as Garrod has pointed out, has a more complex and folded 
cerebrum than the larger Rh. unicornis; the brain of Rh. sondaicus 
is if anything rather more complex than that of Rh. unicornis, though 
here, again, the contrary might have been expected. The brain of 
the Horse is at least as complicated in the cerebral folds as that of 
Rhinoceros. It may therefore be that the comparatively simple 
brain of the Tapir is an indication of a low position among the 
Perissodactyla, which is of course favoured by other considerations. 
List oF MEMOIRS REFERRED TO. 
1. Bepparp, F. E., and Treves, F.—On the Anatomy of the 
Sondaic Rhinoceros. Trans. Zool. Soe. vol. xii. pt. vi. (1887), 
pp- 183-198, pls. xxxili.—xxxvil. 
2. CHauveau et ArLoinG.—Traité d’Anatomie comparée des 
Animaux domestiques, 2™* éd. 
3. Euvprs-DesLonecHamps.—Remarques Anatomiques sur le 
Tapir d’Amérique. Mém. Soc. Linn. Normandie, t. vii. 
(1844). 
4. Munir, J.—On the Malayan Tapir, Rhinocherus sumatranus. 
Journ. Anat. and Phys. vol. vi. (1872), pp. 131-169, 
pls. vili.—x. 
5. Krurec.—Ueber die Furehung der Grosshirnrinde der Ungu- 
laten. Zeitschr. f. wissensch. Zool. Bd. xxxi. (1878), pp. 
297-341, Taf. xx.—xxiil. 
6. Owen, Sir R.— Notes on the Anatomy of the American Tapir. 
P. Z.8. 1830-31, pp. 161-164. 
7. Garrop, A. H.—On the Brain of the Sumatran Rhinoceros 
(Ceratorhinus sumatrensis). Trans. Zool. Soe. vol. x. pp. 
411-413, pl. Ixx. 
8. Turner, H. N.—Contributions to the Anatomy of the Tapir. 
P.Z. 8. 1850, pp. 102-106. 
9. YaARRELL, W.—Observations on the Tapir of America. Zool. 
Journ. iv. (1829), pp. 210-213. 
10. Parker, W. N.—On some points in the Anatomy of the 
Indian Tapir (Tapirus indicus). P.Z.S. 1882, pp. 768-777, 
pls. lviii., lix. 
11. Maver, C.—Beitrige zur Anatomie des Elephanten und der 
iibrigen Pachydermen. Nov. Act. Acad. Leop. Bd. xxii. 
(1847), pp. 1-88, Taf. i—ix. 
12. Darestre, C.—Troisicme Mémoire sur les Convolutions du 
Cerveau chez les Mammiféres. Ann. Sci. Nat. sér. 4, t. ii. 
(1855), pp. 65-111, pls. i1., i. 
