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BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 



The three forms from eastern Asia and Java it seems best to place 

 in one species. They are somewhat flattened. The two western 

 species are more flattened, especially in front, and approach the 

 condition of the genus Opalina. None of the forms shows a greatly 



developed, axial system of vacuoles. The most flattened of the five, 

 and so probably the most modified, is C. floridensis, whose occur- 

 rence at Key West, Florida, in a species of Scaphiopus {alhusY^ 

 known only from the Florida keys, is of interest. This is the only 



"Scaphiopus alius might well be treated as a subspecies of 8. solitariua (Holbiook). 



