The Voyage of H.M.S "Challenger" 

 Fiq. 1. 



Polyplacophoni 



Fig. 



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Fig. 5. 



Fig. e. 



Fig. 7. 



Fig. 10. 



Fig. 8. 



T H Thomas del 



Fig.S. 



F Huth. 1..U.' Hi"' 



I, LEPTOCHITON B E N T H U S, n. sp. 2, LEPTOCHITON BELKNAPI, Dall. 3, LEPTOCHITON K E RG U E LE NS1 S, 11. sp. 



4, HE M IARTHRUM S E T U LO S U M , Carpenter. 5, LE P I D P LE U R U S D RSU OSU S, n sp. 6, LEPI D PLE U RU S D A LLI I, n sp 



7, CHITON MURRAYI, n sp 8, PLAXIPHORA CARP ENT E R I, n sp 9.CRYPT0PLAX ST R I AT U S, Lamarck. 



10, CRYPTOPLAX OCULATUS, (Judy & Gaimard. 



