102 



BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 



ZELLERIELLA PALUDICOLAE, new species. 



Type.— United States National Museum Cat. No. 16473. 



Hosts. — Paludicola hibronii (Tschudi), eight infections, three 

 abundant, from Tolcahuano, Chile, Barbour, collector; of these. 

 United States National Museum specimen No. 38920 furnished the 

 type infection. Paludicola hrachyops (Cope), three infections, cm 

 abundant, from Chiara, Venezuela, June 6, 19.01, G. K. Cherrie, col- 

 lector; another, abundant, from Margarita Island, Venezuela, July 

 3, 1895, Robinson, collector; and one, scant, from "South America," 



Fig. 69. — Zei.lrriella paludicolae, from paludicola bibronh : a, a group of cells mag- 

 nified 117 diameters ; 6, c, d, cells magnified 430 diameters. 



Brooklyn Institute. A specimen of this Opalinid from P. hrachyops 

 has been deposited with the United States National Museum as 

 Cat. No. 16474. 



Measurements: A., of a large individual with resting nuclei; B, of 

 a lar^ge daughter cell with nuclei in an equatorial plate phase of 

 mitosis — 



Measurements. 



Length of body 



Width of body 



Length of nucleus 



Width of nucleus 



Length of endospherule . 

 Width of endospherule.. 

 Cilia line int)erval: 



Anterior 



Posterior 



mm. 

 0.147 

 .104 

 .0175 

 .014 

 .0024 

 .001 



.0023 

 . 00365 



mm. 

 0. 01435 



.08 



.031 



.012 



