X BULLETIN 82, UNITED STATES NATIONAL MUSEUM VOLUME 1 



Order Comatulida (continued) 



Suborder Macrophreata (continued) F& st 



Family Atelecrinidae 811 



Genus Atopocrinus 813 



Atopocrinus sibogae 814 



Genus Atelecrinus 817 



Atelecrinus conifer 819 



Atelecrinus wyvilli 820 



Atelecrinus balanoides 823 



Atelecrinus helgae 831 



Genus Sibogacrinus 832 



Sibogacrinus anomalus 833 



Addenda 835 



Index.. 841 



