THE OPALINID CILIATE INFUSOPJAXS. 



289 



BUFONIDAE, cosmopolitan within temperature limits, except 

 Madagascar, Papuasia, New Zealand, and the small islands of the 

 Pacific (fig. 225). The gemis Bufo (fig. 226) has the same distribu- 



tion as the family except that it is absent from both Australia and 

 Papua. Two Tertiary fossil species, Bufo serratus and B. gessnen, 

 are reported from Europe. 



