THE OPALINID CILIATE IXFUSOEIANS, 



295 



this genus known from South America) extending to Peru and Per- 

 nambuco, Brazil (see fig. 230), absent also from most of the oceanic 

 islands. 



Geratohatrachinae (fig. 230, cross), one species in the Solomon 

 Islands. 



Raninae, same distribution as the family, except not in the Solo- 

 mon Islands. One fossil form " Oxyglossus'''' ( !), is reported from 



T 



Wyoming, from " Eocene " (Gadow 1909) or " Comanchian " (Scheu- 

 bert 1915:) rocks. (Fig. 230.) 



Dendrohatinae, Madagascar, tropical Africa, Central America and 

 northern South America. (Fig. 231.) 



