EXPLANATION OF PLATES. 



ABBREVIATIONS. 



a. — aula. 



ap. — auliplexus. 



ar. — arachnoid. 



b. — bone. 



b. V. — blood vessel. 



c. — cartilage. 

 cal. — callosum. 

 cb. — cerebellum. 



c. e. — callosal eminence. 

 cer. — cerebrum. 



ch. — chiasma. 



cm. — cerebral commissures. 



cr. — crista. 



dc. — diaccele. 

 Dieii. — diencephal. 

 dp. — diaplexus. 

 dit,. — dura. 



e. — endyma. 

 ec. — epiccele. 

 Epen. — epencephal. 

 ep. — epiplexus. 

 epi. — epiphysis. 



gl. — intermaxillary gland. 



gni. — geminum. 



gn. — ganglion. 



gs. — gasserian ganglion. 



hb. — habena. 

 hp. — hypoarium. 

 hy. — hypophysis. 



inf. — infundibulum. 



/. — lophius. 



inc. — mesoccele. 



tnd. — medulla. 

 Blesen. — mesencephal. 

 Aleien. — metencephal. 

 mp. — mesoplexus. 

 nitc. — metaccele. 

 mtp. — metaplexus. 

 mtpr. — metapore. 

 mu. — mucosa. 

 my. — myel. 

 niyc. — myelocoele. 



n. — nostril. 



nc. — notochord. 



olf. — olfactorj' lobe. 



/. — porta. 



par. — paraphysis. 



pc. — paracoele. 



pcm. — precommissure. 



pi. — pallium. 



poem. — postcommissure. 



pp. — paraplexus. 



pr. — preoptic recess. 



Prosen. — prosencephal. 



p}X. — prosoccele. 



re. — rhinoccele. 

 Rhitien. — rhinencephal. 



sc. — saccus vasculosus. 



scm . — supracommissure. 



si. — sulcus. 



sp. — supraplexus. 



st. — striatum. 



si. cm. — Sylvian commissure. 



t. — term a. 



th. — thalamus. 



tr. — torus. 



Roman numerals I to XII indicate the cranial nerves. 



