MR. W. K. PARKER ON THE SKULL IN THE MAMMALIA. 
List OF THE ABBREVIATIONS. 
The Roman numerals indicate nerves or their foramina. 
ag.  Angulare. 
ag.p. Angular process. 
ale.  Aliethmoid. 
al.n.  Alinasal. 
als,  Alisphenoid. 
al.s.c. Alisphenoidal canal. 
al.sp. Aliseptal. 
apf. Anterior palatine foramen. 
a.s.c. Anterior semicircular canal. 
at. Atlas. 
aty. Annulus tympanicus, 
On. ~ Axis, 
au. Auditory capsule. 
b.a.  Basilar artery. 
b.h.br. Basihyobranchial. 
baun. Basimandibular. 
bo.  Basioccipital, 
b.pg. Basipterygoid process. 
bs.  Basisphenoid. 
C. Brain. 
cau. Concha auris. 
cd.p. Condyloid process. 
chi. — Cochlea. 
chy. Ceratohyal. 
c.p. and cr.p. Coronoid process. 
erg. Crista galli. 
erp. Cribriform plate. 
ctr. Cornu trabeculie. 
c.ly. Cavum tympani. 
d. Dentary. 
dic. | Dentary canal. 
e. Hye. 
chy. Epihyal. 
en. External nostrils. 
eo.  Exoccipital. 
cp.  Epiotic. 
epg. External pterygoid. 
CU. Eustachian tube. 
7: Frontal. 
fa.  Foramen magnum. 
jur. — Floccular recess. 
fo. Fontanelle. 
fir. Fenestra rotunda. 
fs.o. Fenestra ovalis. 
gl.c. Glandular crypts. 
yf and gl.c. Glenoid cavity or cartilage. 
hy. Uypohyal. 
h.s.c. Horizontal semicircular canal. 
i. Incus. 
i.ag. Internal angular process. 
Gs Internal carotid. 
iby.  Interhyal. 
ifl.  Inferolateral fontanelle. 
if.  Internasal fenestra. 
inf. Infundibuluin. 
ip. Interparietal. 
i.tb. Inferior turbinal. 
it.  Intertrabecula. 
1v. Investing mass, 
VE Jugal. 
j.o. J ACOBSON’S organ. 
z Lachrymal. 
Le. Lachrymal canal. 
led. Long crus of incus. 
ls. and s.c. Lateral sinus. 
le. Larynx. 
m. Mouth. 
m.a.e. External meatus 
mb. and manl. Manubrium mallei. 
m.c.  Meatus cartilage. 
m.g. Mucous gland. 
mk. MEcKEL’s cartilage. 
ml. Malleus. 
mn. Mandible. 
