•!Tie Voyage of tl MS. "Challenger" 



Manajconida PI. XLIX. 



-dijn. 





AninirDeTilyli 



Jjtilr :-.c 



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ANATOMY AND HISTOLOGY. 



CLADORH IZA(?1,PHAKELUA, AXINELLA '?J, t^ASPAlLIA, 



