PLATE 1 
EXPLANATION OF FIGURE 
1 Dorsal aspect of the brainof the carp. X 2. 
a, dorsal-lateral protuberance on the surface of the olfactory bulb caused by the 
entering fibers of the olfactory nerve; bulb. olf., bulbus olfactorius; cbl., cerebellum; 
’ crus olf., crus olfactorium; gang. bas., ganglion Basale of the cerebral hemispheres; 
lob. fac., lobus facialis or tuberculum impar; lob. vag., lobus vagi; mesotela, mem- 
branous roof of the mesencephalon; rhinotela, membranous roof of the cavity of 
the olfactory crus, the rhinocele; sac. dors., saccus dorsalis, enclosing the corpus 
pineale; sp. cord. spinal cord; tela., membranous roof of the fourth ventricle; 
tectum, tectum mesencephali; torus long., torus longitudinalis; valvula, valvula 
cerebelli, showing through the membranous mesotela. 
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