FIELD COLUMBIAN MUSEUM. 



PLATE X, ZOOLOGY. 





• * " , X",, 'i '" " — ,"""'^nnomi^p |> i i > uton V ,, 



PLATYPCECILUS VARIATUS Meek. 

 No. 4486, Field Columbian Museum. 



XlPHOPHORUS HELLERI Giinther. 

 No. 4668, Field Columbian Museum. 



