ELASMOBRANCH BRAIN ORGANIZATION 



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Figure 27 Transverser sections through the (A) right thalamus of Raja eglanteria and (B) 

 thalamic and (C) mesencephalic levels of Plat y rhino id is triseriata. cz, central tectal 

 zone; dt, dorsal thalamus; fb, forebrain bundles; h, habenular nuclei; il, inferior lobe of 

 hypothalamus; mln, mesencephalic lateralis nucleus; ot, optic tectum; pa, preoptic area; 

 pz, periventricular tectal zone; sz, superficial tectal zone; vt, ventral thalamus. 



