NERVOUS SYSTEM. - VERTEBRATA. 327 



the same relation to the upturned splenial as to the crucial 

 in the Canidae. 



There is no sulcus posticus, as Krueg describes; but 

 between the posterior rhinal fissure and the suprasylvian 

 sulcus there are several vertical fragmentary sulci. On the 

 left side the suprasylvian sulcus itself extends downward 

 in this situation. There it shows that what Krueg regards 

 as the posterior part of this latter sulcus is merely a branch 

 or extension backward. 0. C. 1328 E c. 



Krueg, Zeitsch. f. wiss. Zool., Bd. xxxi. 1878, p. 317. 



D. 430. The brain of a Musk-Deer (Mosclius moschiferus), ( ? ). 



This brain differs only in minor details, such as the 

 poorer development of the ansate and lateral sulci, from 

 the other specimen. 



The sulcus posticus, which Krueg mentions in this brain, 

 is present only in the right hemisphere as a small horizontal 

 depression between the suprasylvian sulcus and the posterior 

 rhinal fissure. 0. C. 1328 E e. 



D. 431. A cast of the cranial cavity of Mosclms moschiferus. 



D. 432. The brain of a Muntjac (Cervulus muntjac). 



In spite of its much larger proportions this brain presents 

 many resemblances to that of the Musk-Deer. 



The splenial sulcus is dorsally situated during a con- 

 siderable part of its course. Its anterior extremity bends 

 outward like a crucial sulcus. 



The pseudosylvian, suprasylvian, lateral, coronal, and 

 orbital sulci conform to the same type. 



There is a small diagonal sulcus and a shallow sulcus 

 posticus of Krueg (sulcus obliquus of Holl). 



0. C. 1328 E r. 

 Presented by the Zoological Society. 



D. 433. The brain of a Michie's Deer (Elaphodus michianus), 



The brain is fairly rich in sulci considering its size. It 

 is somewhat larger than that of the Pudu ; but it closely 

 resembles it in the arrangement of its sulci as well as in the 



