MUSEUM OF COMPARATIVE ZOOLOGY. 47 



EXPLANATION OF THE PLATES. 



Fig. 1, 2. Patula Idahoensis. 



" 3. Patula strigosa, var. albofasciata. 



" 4. Patula strigosa, vavi albofasciata : toothed. 



" 5. Patula strigosa, var. Gouldi. 



" 6. Patula strigosa, var. multicostata. 



" 7. Patula strigosa, var. Wasatchensis. 



" 8. Patula strigosa, iJar. NewcombL 



" 9. Patula strigosa, var. Gabbiana. 



" 10. Patula strigosa, var. 



" 11. Patula strigosa, var. castanea. 



" 12. Patula strigosa, var. Oquirrhensis. 



" 13. Patula strigosa, ■rar. Binneyi. 



" 14. Patula strigosa, var. castanea. 



" 15. Patula strigosa, var. Hemphilli. 



" 16. Patula strigosa, var. Gouldi. 



