The Voyage of H.M.S."Challenger" 



Holotr: 



*%■ 7 



Fig. :' 



Fig. 



Fig. 4. 





m 



Fig. 



* 



Litidber^ del. 



FHuOi.Liih'Edin* 



I, PEN1AGONE LUGUBRIS, n sp 2, PENIAGONE HORRIFER, i. sp. 

 3-4, PENIAGONE WYVILLI1, a. sp. 5, PENIAGONE ATROX, nsp. 



