The Voyage of HM.S "Challenger'.' 

 '"'■$■'■ ,.<v^ Fie,. 2. 



Tunicata Part 111. PL XI. 



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F flulh LiDi' 1i\^ 



Fig? 1-6, A B Y 5S AS CI D I A V A S C U L S A , n sp Fi^= 7-13 , A S C 1 D I A , sp. 



Fi^? 14--16, STYELA SERICATA, n.sp. 



