30 



INTB OD TJCTION. 



linitfS 



^-S^'nse- organ 

 : caput. 



'~ -iO»-(|Ktmai 



disitcU tncL 



Fiq.% Dor saL aspect 



columyia / 

 ■verttlTraLis''t 

 X 

 sinistra I 



..canaLis.. 

 ntu-raUS 



dtKirat 



, limir W ^^"J~/~-aLiminteLfU 

 (rn em tram) x;-;^p><: ^ ^ ca.naL-' 



VewtraTasypecii ~ -■- c a rcti a 



Ha. 3. Transection 





^^o*^ f/fl.'^ Hemisection 



Diagrams op Thebb Aspects of a Vbktebeatb, 

 Exhibiting the most Genbkal Fbatubes. 



