///yo//' A\jyir</f / to/if /t fl.2 



xfttngersen . .4/i/itndices genitalis /ti/> M 



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43 



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30 



32 



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1 



1 h 7 





I /•■ ■ ' 



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14 



n 



30 



36 



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Kg. 28 -31 Torpedo marmorala , Kg.32 3't. jYarciiu s/i Fig. 33 37. lUiinobalthS e*lnmn.a , 

 /■«j :>,y 'tO 7'rygon riolacea , /■'// 41 44: Raja circularis 





