THE OPALISriD GILIATE INFUSORIANS. 



53 



Specimens of P. intestinalis have been deposited with the United 

 States National Museum as Cat. Nos. 16441 (from Bornbina hom- 

 Mna) and 16442 {ivom. Bonibina pachypa) . 



Fig. 28. — Protoopalina intestinalis^ fkom bombina pachypa : a to c, magnifibd 307 



DIAMETERS ; d, THE TWO NUCLEI FROM THE INDIVIDUAL SHOWN IN C, EACH NUCLEUS IK 

 AN ANAPHASE OF MITOSIS. ONLY THE MACROCHBOMOSOMES AND SOME OF THEIR FIBERS 

 ARE SHOWN. The CIRCLE IN THE LOWER NUCLEUS REPRESENTS THE NUCLEOLUS. FlQ. d, 



MAGNIFIED 667 DIAMETERS. (After Metcalf, 1909.) 



PROTOOPALINA ADELAIDENSIS. new species. 



Tyj)e. — United States National Museum Cat. No. 16624. 



Host. — Hyla adelaidensis Gray, United States National Museum 

 specimen No. 59951, from Margaret River, northwestern Australia, 

 received from the Museum and Art Gallery of Western Australia. 



