ON THE ANATOMY OF FISHES. 
331 
crx. 
Cranial cavity. 
c.s.i. 
Cavum sinus imparis. 
e.o. 
Exoccipital. 
e.oJ. 
Neural plate of exoccipital. 
e.o.^. 
Posterior plate of exoccipital. 
e.o.^. 
Opisthotic plate of exoccipital. 
e.o^. 
Horizontal plate of exoccipital. 
e'p.o. 
Epiotic. 
fmg. 
Foramen magnum. 
fs. 
Cranial recesses for the sacculi (fovse sacculi). 
h.c. 
Canal for horizontal semicircular canal. 
l.g. 
Lateral groove for the ductus sacculo-utricularis. 
o.s. 
Orbitosphenoid. 
p. 
Parasphenoid. 
p)t.O. 
Pterotic. 
pr.o. 
Prootic. 
s.o. 
Supraoccipital. 
so. 
Supraoccipital spine. 
sp.o. 
Sphenotic. 
t.g. 
Transverse groove for the ductus endolymphaticus. 
tp.f. 
Temporal fossa. 
ut.r. 
Recess for the utriculus and semicircular canals. 
V, V'. 
Foramina for the Fifth cranial nerve (Trigeminal) and for its lateral 
branch. 
VII, IX, X. 
, Foramina for the Seventh (Facial), Ninth (Glossopharyngeal), and 
Tenth (Vagus) nerves respectively. 
III. — Pectoral Girdle. 
cl. 
Clavicle. 
cl.s. 
Socket for the head of the clavicle. 
cl.p. 
Posterior process of the clavicle. 
cl.p. 
Additional posterior process of clavicle. 
CO. 
Coracoid. 
pt. 
Post-temporal. 
pt.Cl. 
Ascending process of the post-temporal. 
pt.i. 
Inferior process or limb of post-temporal. 
pt.p. 
Post-temporal plate. 
pt.s. 
Descending process or stem of jiost-temporal. 
2 U 2 
