240 BUO.ETIX 120, UNITED STATES NATIONAL MUSEUM. 



and Zelleriellas, and we have seen numerous Cepedeas and Opalinas 

 with ovoid nuclei, probabl}^ resting in a mid-mitotic condition, but 

 in no other multinucleated species known is the picture so clear as 

 in the large nuclei of 0. cincta. Collin implies that this is char- 

 acteristic not only of the individual figured, but of the species. It 



KlG. -'l-'j. — OrAI.INA CINCTA, X 1,500 DIAMETERS. (AFTER COM.IN.) THE ANTKUlOll END 

 OV THE BODY IS NOT INDICATED BY COLLIN AND CAN NOT BE DKTEKMINED WITH CERTAIXTT 

 rUCM THE FIGURE). 



seems an indication that tlie organisms are not to be regarded as an 

 extreme form of 0. ranarum^ a species with mostly spheroidal nuclei. 



OPALINA RADDEI, new species. 



Tyye. — United States National Museum Cat. Xo. 16604. 



Host. — Bufo radiJei Strauch, five infections from China. The type 

 infection is from United States National Museum specimen No. 

 53387. 64 mm. long, from Hei Sui. nortlieastern Cliili. China : 

 A. de C. Sowerby collector. 



Measurements: A, of a Jorge individual; B, of a medium-sized 

 individual — 



Measurements 



Lengtli of hod V 



Width of body 



Thickness of body 



Diameter of nucleus 



Diameter of endospherule. 

 Cilia line interval; 



Anterior 



Posterior 



0.54 

 .24 

 .042 

 0. 0025- . 004 

 .0013 



.00185 

 .003 



