EXPLANATION OF PLATES. 



ABBREVIATIONS. 



a. — aula. 



ap. — auliplexus. 



ar. — arachnoid. 



d. — 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. — diacoele. 

 Dien. — diencephal. 

 dp. — diaplexus. 

 dii. — dura. 



e. — endyma. 

 ec. — epicoele. 

 Epen. — epencephal. 

 ep. — epiplexus. 

 epi. — epiphysis. 



gl. — intermaxillary gland. 



gin. — geminum. 



gn. — ganglion. 



gs. — gasserian ganglion. 



hb. — habena. 

 hp. — hypoarium. 

 hy. — hypophysis. 



inf. — infundibulum. 



/. — lophius. 



mc. — mesocoele. 



'ind. — medulla. 

 Mesen. — mesencephal. 

 Meten. — metencephal. 

 mp. — mesoplexus. 

 intc. — metacoele. 

 mtp. — metaplexus. 

 nitpr. — metapore. 

 mu. — mucosa. 

 my. — my el. 

 myc. — myeloccele. 



n. — nostril. 



nc. — notochord. 



olf. — olfactory lobe. 



p. — porta. 



par. — paraphysis. 



pc. — paracoele. 



pan. — precommissure. 



pi. — pallium. 



poem. — postcommissure. 



pp. — paraplexus. 



pr. — preoptic recess. 



Prosen. — prosencephal. 



pre. — prosoccEle. 



re. — rhinoccele. 

 Rhirten. — rhiuencephaL 



sc. — saccus vasculosus. 



sem. — supracommissure. 



si. — sulcus. 



sp. — supraplexus. 



st. — striatum. 



si. cm. — Sylvian commissure. 



t. — terma. 



th. — thalamus. 



tr. — torus. 



Roman numerals I to XII indicate the cranial nerves. 



