The Voyage of H.KS.,, Challenger." 



Hexactinelhda.Pl.LIX. 



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F.E.Schulze and GFirtscK del. 



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Fig.1-5. BATHYDORU.S STELLATUS. F.E.Schulze. Fig. 6-9. BATHYDORUS SPINOSUS. FLSchulze. 

 Fig.lO-IS. BATHYDORUS BACULIFER. F.ESchulze. 



