PLATE 6 



DEVELOPMENT OF THE SKULL OF EMYS 



B. W. KUNKEI, 



EXPLANATION OF FKHIIiKS 



30 Ventral view of t he olfactory capsule of an embryo liaviuf"; a ca.ra.i)ac(> leiijitli 

 of 7 mm. showing the cartilage parascptalis {c.p.) sei)arate(l from the sei)tum nasi 

 as far anterior as the lamina terminalis anterior [l.t.a.) and consequently the 

 foramen praepalatinum not enclosed posteriorly. X 20. 



31 Post(M-i()r portion of the right otic cai)sule viewed from in front and slightly 

 from (he median line, showing cs])ecially the groove in which the n. glossopharyn- 

 geus passes through the capsule between the foramen glossopharyngci internum 

 (f.g.i.) and the foramen glossopharyngci externiun (f.g.e.), and also showing the 

 opening of the canalis ])cri!ymphaticus (c.pcr.) into the cochlear cavity. X 24. 



780 



