236 
Ep. P.—Epiotic process of epiotic. 
e. s. c.—External (horizontal) semicircular canal. 
Eth.—Ethmoid cartilage. 
Ex. O..—Exoccipital. 
ext. cr.—Crista acustica ampulle externe. 
f. car.—Carotid foramen, transmitting the internal carotid artery. 
f. gl.—Foramen of the N. glossopharyngeus. 
f. jug.—-Jugular foramen, transmitting the superior (internal) jugular vein, 
the ophthalmic artery and the T. hyomandibularis facialis. 
F. M.—Foramen magnum (occipital foramen). 
f. olf —Olfactory foramen in the pre-frontal by which the N. olfactorius 
reaches the nasal chamber. 
F'.R.—Fin rays. 
F'.R.«> —The two pieces forming a single fin ray. 
F.R.< —Ligament connecting the two halves of the fin ray. 
F.R.4—Ligament connecting one half of the fin ray with the baseost. 
F.R. —The right abductor muscle of the fin ray. The elevator and 
depressor muscles do not appear in this section. 
EF’. Sp. N.—Foramina for the spinal nerves. 
F. Sp. N.® —Foramina for the fourth spinal nerve. 
f. tr. fa.—Trigemino-facial foramen, transmitting the vth and viith nerves 
except the T. hyomandibularis facialis. 
f. vg.—Foramen of the N. vagus. 
. 3—6.—Ganglia of the spinal nerves 3 to 6. 
. v—vti.— Massed ganglia of the trigeminal and facial nerves. 
. x. 1.—Ganglion of the first branchial trunk of the N. vagus. 
. x. 2—5.—Ganglionic complex formed by the second, third and fourth 
branchial + the intestinal ganglia of the N. vagus. 
. coel.—Ganglion coeliacum. 
. d. 2.—Dorsal ganglion of the second spinal nerve. 
g 
g 
g. ix.—Ganglion of the N. glossopharyngeus. 
g 
g 
g 
g 
g. extcr.—Extracranial ganglion of the first spinal nerve. 
g. intcr.—Intracranial ganglion of the first spinal nerve. 
gy 
. v. 2.—Ventral ganglion of the second spinal nerve. 
H. A.—Haemal arches, numbered from before backwards. 
H. Br.) —Hypo-branchial of the first branchial arch. 
H. C.—Haemal canal. 
H. Hy.—Hypo-hyals. 
Hm.—Hyomandibular. 
Hm. F.1~*—Cup and facet for head of hyomandibular. Cp. fig. 5. 
es Se 
