NO. 30 A NEW CORNUCOPINA (bRYOZOA) OSBURN 3 



The single type specimen was collected by the Johnson-Smithson- 

 ian Deep-Sea Expedition on February lo, 1933, west of Puerto 

 Rico; latitude i8°i4'2o" N., longitude 67°38'25" W., at 400 fathoms, 

 U.S.N.M. No. 10087. 



The species of Cornucopina fall naturally into two groups, de- 

 pending on the presence or absence of a "digitiform process" for the 

 attachment of the long spines. Since in C. antillea, n. sp., the spines 

 are attached singly to the wall of the zooecium, this species belongs 

 in the group that includes the genotype C. grandis (Busk), C. conica 

 Harmer, C. polymorpha (Kluge), C. lata (Kluge), C. inftindihulata 

 (Busk), C. pectogenima (Goldstein), and C. dubitata (Calvet). It 

 bears a fairly close resemblance to C. pectogemnia from Marion and 

 Heard Islands in the Indian Ocean, but differs in the form of the 

 long avicularia, the presence of short avicularia, the form of the 

 ovicell, the arrangement of the spines, and other minor characters. 

 All the other species of this group occur in Australian waters or 

 Antarctica. 



