The Voyage of H M S "Challenger" 



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1-5 GONIOCIDARIS 6-14- POROCIDARIS 15-18 ASPIDODIADEMA. 19-31 PHORMOSOMA 32-36 ASTH EN OSOMA . 

 37 MICROPYGA. 38-40 PSEUDOBO LETl A . 4-1-44 ECHINOLAM PAS .4S-4G ACESTE. 



47-'t8 CALYMNE. 



