XTII 



PHYLUM CHORDATA 



95 



" - 13 



o i; 



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! r- a: x 



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r^3 """! -I- !- C 



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3 



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g .;^ i'S. 





^2 



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-2 * 



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O PH 33 



O O O 



QC (-1 



O ' 



5l-S 



O . . GC **< 



O r\ -^ O 

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" 3 .s .2 



' c3 ^ "* 2S 

 > ^ _c _o -^ * 



Mlte & 





l|_- 



sTrT ^ 



-^ o A 



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S.2 ^ 



O 



s ^ ^ s s 



o-ilto 



T3 * -2 = i 



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+^ S <> <D 



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c6 

 h, 



-= 



y: 



o 



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IS 8 =3-^ 



S ^ 5-.S = ? r- 



g = 

 



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SSsS 





CO ' 

 CO 



r~< 



C 







or: -J rO c 



