PLATE 4 



Figures 1 and 2. Valrain oregonf-nats, n. sp. Paratype. Enlarged 5.5 di- 

 ameters. Dorsal, marginal and basal carinae present. 



Figures 3 and 4. rnlrata oreyoiirnsis, n. sp. Paratype. Enlarged 5.5 di- 

 ameters. Dorsal, marginal and basal carinae present. 



Figure 5. PalumlcxtriiHt microcoecus (Pilsbry). Diameter, 1.7 mm.; altitude, 

 '2.'2 mm. 



Figures 0, 7, and 8. I'orlit'ifejr binncyi (Meek). Fig. 6, measures: diameter, 

 14.1 mm.; altitude, 9.2 mm. Fig. 7, measures: diameter, 17.1 mm.; 

 altitude, 0.8 mm. Fig. 8, measures: diameter, 12.8 mm.; altitude, 

 mm. 



Figures 9 and 10. rorlicife.r condoni, n. sp. Type. Diameter, 4.4 mm.; 

 altitude, 2.1 mm. 



[22 



