Mem. Nat. M 



Vict., 15 



Plate X 



ERRATA 

 Some figures on Plate X are transposed: 

 AUodiscus marysvillensis, p. 122, should read Fig'. 6. 

 Charopa lakesentranciencia, p. 119, should read Pig. 7. 

 Chnropa problematica, p. 119, should read Fig. 8, 



