258 MR. F. E. BEDDARD ON TAPIRUS TERRESTRIS. [May 7, 



There seems to be no doubt that the cerebral convolutions are 

 simpler in Tapirits than in the other types ; on tlie 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. Beddard, F. E., and Treves, F.— On the Anatomy of the 



Sondaic Rhinoceros. Trans. Zcol, Soc. vol. xii. pt. vi. (1887), 

 pp. 183-198, pis. xxxiii.-xxxvii. 



2. Chauveau et Arloing. — Traite d'Anatomie comparee des 



Animaux domestiques, 2""^ ed. 



3. Eudis-Deslongchamps. — Remarques Anatomiques sur le 



Tapir d'Amerique. Mem. Soc. Linn. Normandie, t. viii. 

 (1844). 



4. Murie, J. — On the Malayan Tapir, Rhinochmrus sumatranus. 



Journ. Auat. and Phys. vol. vi. (1872), pp. 131-169, 

 pis. viii.-x. 



5. Krueg. — Ueber die Furcbung der Grosshirnrinde der Ungu- 



laten. Zeitschr. f. wissensch. Zool. Bd. xxxi. (18/8), pp. 

 297-341, Taf. xx.-xxiii. 



6. Owen, Sir R. — Notes on the Anatomy of the American Tapir. 



P. Z.S. 1830-31, pp. 161-164. 



7. Garrod, A. H. — On the Brain of the Sumatran Rhinoceros 



{Ceratorhinus sumatrensis) . Trans. Zool. Soc. vol. x. pp. 

 411-413, pi. Ixx. 



8. Turner, H. iN. — Contributions to the Anatomy of the Tapir. 



P. Z. S. 1850, pp. 102-106. 



9. Yarrell, 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 indiciis). P. Z. S. 1882, pp. 768-777, 

 pis. Iviii., lix. 



11. Mayer, C- — Beitriige zur Anatomie des Elephanten und der 



iibrigen Pachydermen. Nov. Act. Acad. Leop. Bd. xxii. 

 (1847), pp. 1-88, Taf. i.-ix. 



12. Dareste, C.^ — Troisieme Memoire sur les Convolutions du 



Cerveau chez les Mammifcres. Ann. Sci. Nat. scr. 4, t. iii. 

 (185.5), pp. 65-111, pis. ii., iii. 



