DEVELOPMENT OF THE CHOHOll) PLEXUS 



113 



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Fiji. 1^ Median view of a miHld ol ilir turcl.rMin tr..iii the I'.t inin. cniltryn, 

 H 173. X '221. Tho dotted lino follf)\vs the .sulrus liinitans. The limiting 

 Mienihrane i>ouiuling the ejiiphyseal vesicle, e.w. ventrally in this figure should 

 Ix' reiiresented as iiu'onij)Iete: cf. figure 10. 



In this anil some of the following figures the i)lanes of the cross sections in 

 the text-figures are indicated. The arrows at the right and left ends of the 

 models are marked with the slide and section luuiibers of the first and last 

 sections represented in tiie models. The reference letters for this and the 

 following figures are tOuiul on jiage SS. 



>.\1I'.\UAT1VE NEl-ROI.OGY, VOL. 26, NO. 



