bh 
FIG. 4. SIDE VIEW OF CAT SKULL, WITH THE LOWER JAW AND THE 
HYOIDEAN ARCH SOMEWHAT DETACHED — AFTER MIVART. 
a (just above 6 and 7), All-sphenoid. 
ae, Meatus auditorius externus. 
aw, Angle of mandible. 
ar, Ascending ramus. 
6, Auditory bulla. 
M, Basi-hyal. 
c (of cranium), Occipital condyle. 
c (of mandible), Coronoid process. 
cA, Cerato-hyal. 
eA, Epi-hyal. 
y, Frontal. 
^r, Horizontal ramus of mandible. 
2/, Interparietal. 
j\ Malar (or jugal). 
/rt. Lachrymal. 
»/, Maxilla (its nasal process). 
Mastoid process. 
«, Nasal. 
cs, Orbito-sphenoid. 
Parietal. 
^a, Palatine. 
pju, Premaxilla. 
pi, Pterygoid. 
J, Squamosal. 
sk, Stylo-hyal. 
so. Supra-occipital. 
Cartilage of tympano-hyal. 
Pit of tympano-hyal. 
Apex of lambdoidal ridge. 
2, Intra-orbital foramen 
6, Optic. 
7, Sphenoidal fissure. 
8, Foramen rotundum. 
Q, Foramen ovale. 
12, Stylo-mastoid foramen. 
I J, Mental foramina. 
The spheno-palatine foramen is shown 
just above, and in front of, />n, close to 
posterior margin of anterior end of zygoma. 
