236 



Ej}. P. — Epiotic process of epiotic. 



e. s. c. — External (horizontal) semicircular canal. 

 Eth. — Ethmoid cartilage. 



Ex. 0. — Exoccipital. 



ext. cr. — Crista acustica ampuUte externre. 



/. car. — Carotid foramen, transmitting the internal carotid artery. 

 /. 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). 



/. olf. — Olfactory foramoi 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.^ — 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. 



F. Sp. N. — Foramina for the spinal nerves. 



F. Sp. N.'-> — Foramina for the fourth spinal nerve. 



/. tr. fa. — Trigemino-facial foramen, transmitting the vth and viith nerves 

 except the T. hyomandibularis facialis. 



/. vg. — Foramen of the N. vagus. 



g. 3^6. — Ganglia of the spinal nerves 3 to G. 



g. V — vii. — Massed ganglia of the trigeminal and facial nerves. 



g. ix. — Ganglion of the N. glossopharyngeus. 



g. X. 1. — Ganglion of the first branchial trunk of the N. vagus. 



g_ X. a — 5. — Ganglionic complex formed by the second, third and fourth 

 branchial -|- the intestinal ganglia of the N. vagus. 



g. coel. — Ganglion coeliacum. 



g. d. 2. — Dorsal ganglion of the second spinal nerve. 



g. extcr. — Extracranial ganglion of the first spinal nerve. 



g. inter. — Intracranial ganglion of the first spinal nerve. 



g. V. 2. — Ventral ganglion of the second spinal nerve. 



H. A. — Haemal arches, numbered from before backwards. 



H. Br.^ — Hypo-branchial of the fii-st branchial arch. 



H. C. — Haemal canal. 



H. Hy. — Hypo-hyals. 



Hm. — Hyomandibular. 



Hm. jP.1-2 — Cup and facet for head of hyomandibular. Cp. tig. 5. 



