Foot & Strobell. 



JouRN. Linn. Soc. Zool. Vol. XXXII. PI. 43. 



K.F.&E.C.S., photo. 



Andre, Sleigh & Anglo, Ltd. 



INTROMITTENT ORGANS from F2 HYBRIDS from 

 E. VARIOLARIUS & E. SERVUS. 



