ENDOCRANIAL CASTS OF THE GIRAFFIDAE ao 
of the tuberculum olfactorium (7'.0.).. Behind this area a 
transverse groove caused by the posterior margin of the lesser 
sphenoidal wing marks the caudal limit of the anterior cranial 
fossa. The position of the optic foramina (//J.) is indicated 
on each side of the cast by two dorso-ventrally compressed promi- 
nences, behind the trigonum olfactorium. 
In the giraffe, as in the sheep and cow, the foramen lacerum 
orbitale and foramen rotundum form one large opening into 
S.presylyv. - - mm 
R.ant.ectosyly.. /* 
For.condyl. 
a 
a S. lat. 
rmisi = 
Ve S.suprasylv 
> ..S.ans, 
--R.desce.ss. ze 
' N S.arc, ae BSiiaci 
ae SS 
- NPS, 
\Ar Floc. ean S.Ps \ 
: _\__S.presyly. 
ps: cars _-R.ant.ectosylyv 
WWRAlcs= 24 ; 
Fondacens== AY 
Sige eT = w= iEL-B.O. 
3 For-condy!. % <> Sealy 
Md.V 
R. post.ectosylv.-” 
Figs. 1, 2 and 3 Outline drawings of endocranial cast of Giraffa camelopar- 
dalis, ventral, dorsal and right lateral views respectively. For lettering see 
list of abbreviations page 332. For the photographs from which these outlines 
were taken, see figures 17 to 19. About 4 natural size. 
