272 PHYSIOLOGICAL SERIES. 



The compensatory ansate sulcus does not join the crucial 



sulcns. O.C.1325N* 



Mivart, Journ. Linn. Soc., vol. xix. 1886, p. 16, hgs. 4 



anil 5. 



D. 352. Th brain of the Grison (Galictis vittata), (<?), (figs. 

 L45A146). 



Fig. 145. (Nat. size.) 



SULC. SUPRAS. 



' __ SULC. LAT. 



SULC. CRU. 



SULC. COR. 



Fig. 146. (Nat. size.) 



SULC. LAT. 



The crucial sulcus joins the prolongation of the calcarinej 

 there is a very small precrucial sulcus near the mesial 

 plane ; the prorean sulcus already noted in Gulo is pivsmt 

 aUo in this, as it is in Galera. 0. C. 1325 Na. 



Mivart, Journ. Linn. Soc., vol. xix. 1886, p. 16. 



D. 353. The hrain of a Grison (Galictis vittata). 0. 0. 1325 N. 



D. 354. The hrain of a Zorilla (Ictonyx zorilla) . 



This hrain rcsemhles that of Pidorius in almost allpoinis. 

 It, however, presents a small ansate sulcus, which is lacking 

 in Pitiorius. 



