241 



r. st. X. — R. supratemporalis vagi. 



r. V. 1. — R. ventralis of the first spinal nerve -f- an anastomosis from the 

 second. 



r. V. i.i ) 



\ ]\Iotor branches of the brachial plexus. 

 r. V. i.2 



r. V. 1.^ — Motor | 



y branches of the brachial plexus to the pectoral fin. 

 r. V. lA — Sensory 



r. V. 2/ — Anastomosis between RR. ventrales of the first two spinal 

 nerves. 



r. V. 3-\-3. — Fused RR. ventrales of spinal nerves 2 and 3. 



r. V. 2-\-3.' — Motor branch sending an anastomosis to R. ventralis 4. 



r. V. 2 -\-3". — Sensory nerve to pectoral fin. 



r. V. 2 — 5. — RR. ventrales of spinal nerves 2 to 5. 



r. V. h-\-c. — R. ventralis of first spinal nerve. 



rx. h. — Radix brevis. 



rx. I. — Radix longa ganglii ciliaris (accompanied by sympathetic). 



sac. — Sacculus. 



Sc. — Scapula. 



S. C. — Spinal canal. 



S. CI. — Supra-clavicle. 



Sin. V. — Sinus venosus. 



Sk. — Outline of skull. 



S. O. — Supra-occipital. 



s. o. c. — Supra-orbital commissure between the two supra-orbital sensory 

 canals. 



S. Op. — Sub-operculum. 



S. Ph. — Superior pharyngeal bone of the eyeless side intact. The numbers 

 denote the branchial arches to which its constituents belong. 



Sjpl. — Spleen. 



Sp. N.^^ — Thirteenth spinal nerve. 



Sp. O. — Sphenotic. 



S. R. — Strengthening ridges of the vertebral centra. 



s. t. c. — Supratemporal portion of the lateral sensory canal. 



sicp. c. — Right supraorbital sensory canal. 



^' ' I — Vestiges of the left supraorbital sensory canal. 

 Slop, c." j 



Sij. — Symplectic. 



t. X. 1. ] 



t. X. 2. \ — First, second and third Trunci branchiales vagi. 

 t. X. 3. ) 

 B 



