NERVOUS SYSTEM AND SENSE ORGANS OF AMIURUS., 451 
: PLATE V. 
Represents 20 frontal sections through brain of adult Armiurus, the planes of 
which are indicated in Figs. 13 and 14, Plate I. The anterior sections are 
slightly oblique. 
Aq. S.—Aqueduct of Sylvius. 
OC. H.—Cerebral hemisphere. 
CO. H. L.—Uateral lobe of hemisphere. 
Com. acc.—Commissura accessoria of Mauthner. , 
Com. ant.—Commissura anterior. 
Com. cer. inf. —Commissura cerebri infima of Haller. 
Com. post.—Commissura posterior. 
Com. trans.—Commissura transversa Halleri. 
Cor. Cer.—Cortex of Cerebellum. 
Cor. Val. Cer.—Cortex of valvula cerebelli. 
Epi.—Epiphysis. 
G. H.—Ganglion Habenule. 
G. I.—Ganglion interpedunculare of Gudden. 
Lob. Tri.—Trigeminal lobes. 
Lob. Vag.— Vagus lobes. 
ZL, I,—Lobus inferior. 
ZL. L.—t\.ateral longitudinal fasciculi. 
L. O.—WLobus opticus. 
M. B.—Bundles of Meynert. 
M. F. —Fibres cf Mauthner. : 
Mol. Cer.—Molecular layer of cerebellum. 
NV. II,—Opticus. 
N. [1I.—Oculomotorius. 
WN. 1V.—Trochlearis. 
N. V. asc.—Ascending root of fifth. 
N. V. gen. d.—Dorsal geniculated root of fifth. 
N. Vil.—Facialis. 
N. Vill.—Auditory. 
Nucl. Sp. I.—Nucleus of 1st spinal. 
Nucl. Vag. II. M.—Nucleus of motor root of posterior part of vagus 
group. 
Ol.—Olfactory tract. 
Op. Chi.—Optic chiasma. : 
Pd.—Peduncle of cerebral hemisphere. 
R. ac. V.—Root of fifth from tuberculum acusticum. 
R. ac. Vag. I.—Root of vagus group from tuberculum acusticum, 
Sec. V. T.—Secondary vago-trigeminal fasciculus. 
T. L.—Torus longitudinalis. 
T. O.—Tectum opticum. 
T. S.—Torus semicircularis. 
Tr. O.—Optic tract. 
