1898.] NATURAL SCIENCES OF PHILADELPHIA. 71 



Fig. 6, 7. Epiphragmophora areolata (Sowb.). Natividad Is. No. 

 69,646. In fig. 6 the opposite side of dart sack and associ- 

 ated organs is seen, and the spermatheca duct with its 

 diverticulum torn free from the uterus. 



Fig. 8. Epiphragmophora Stearnsiana (Gabb). Coronado Is. No. 

 69,014. " 



Fig. 9, 10. Another specimen from the same locality, No. 66,091, 

 showing no trace of the diverticulum upon spermatheca 

 duct. 



Fig. 11. Epiphragmophora Guadalupiana Dall. Guadalupe I., off" 

 Lower Cal. No. 69,648 (Drawn to double the scale of 

 other figures of this plate). 



