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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 87 



Measurements, in microns, for some individuals: Body, 313 by 80, 

 70 by 23; nucleus, 19 by 19,20 by 15; cilia length, 9. 



The widely separated nuclei with no connecting thread help to 

 distinguish this very long species. P. hylarum (Raff) has this same 



Figure 27. — Protoopalina luzonensis, new species, X 249. 



feature, but it is nearly twice as large (linear measurement) and its 

 nuclei are smaller. The number of nucleoli is undetermined. 



PBOTOOPAUNA MERIDIONALIS Fantham and Robertson 



Figure 28 



Host: Rana delalandii (Tschudi), from Johannesburg, South Africa. 



Measurements, in microns (given by Fantham): Body length 80- 

 240, width 24-80; nuclei length 10-20, width 7.5-12.5. Note the 



large nucleolus in each of the nuclei in figure 28, b (cf. the dimensions 

 under P. caccosterni) . 



PROTOOPALINA MOSSAMBICENSIS Metcalf (?) 



Fantham found what he regards as this species in the same host, 

 Rana adspersa Tschudi, from Johannesburg, South Africa. The 

 measurements, in microns, he gives are: Body, 127 by 50. He reports 

 the nuclei as "spherical to ellipsoidal." The specimens described by 

 Metcalf (1923a) from Mozambique have slender, spindle-shaped 

 nuclei even in the cysts, though one cyst is drawn with an unusually 

 large, nearly spherical nucleus. In the adults Metcalf found the 

 slender nuclei united always by a thread. The specific identity of 

 the Johannesburg and the Mozambique forms seems doubtful. 



