REFERENCE TO PLATES, VOL XIX. 



PLATE 1. 

 FIGURE. PAGE. 



1, 2. Spiraxis inusitatus C. B. Ad. Acad. coll. Win- 

 chester del 15 



3. Spiraxis mirabilis C. B. Ad. Acad. coll. Winchester 



del 16 



4, 5. Spiraxis costulosus C. B. Ad. Acad. coll. Win- 



chester del 17 



6. Spiraxis costulosus C. B. Ad. Adams coll. Pilsbry, 



del 17 



7. Spiraxis verberatus Pils. Henderson coll. Win- 



chester, del , 43 



8. Spiraxis terebella (striatellus C. B. Ad.) Adams 



coll. Pilsbry, del 29, 30 



9. Spiraxis anomalus C. B. Ad. Acad. coll. Win- 



chester, del 18 



10. Spiraxis terebella C. B. Ad. Acad. coll. Win- 



chester, del ,. . 29 



11. Spiraxis terebella C. B. Ad. Adams coll. Pilsbry, 



del 29 



PLATE 2. 



12. 13. Spiraxis uruapamensis Pils. Acad. coll. Win- 



chester, del 22 



14. Spiraxis nitidus major Marts. Biol. Centr. Am. ... 24 



15. Spiraxis nitidus pittieri Marts. Biol. Centr. Am... 24 



16. Spiraxis scalella Marts. Biol. Centr. Am 22 



17. Spiraxis scalariopsis Morel. Moll. Mex 21 



18. Spiraxis tennis Pfr. Moll. Mex , 21 



19, 20. Spiraxis odiosus Pils. Acad. coll. Winchester, 



del 25 



21, 22. Spiraxis rhoadsee Pils. Acad. coll. Winchester, 



del 26 



23. Spiraxis patzcuarensis Pils. Acad. coll. Win- 

 chester, del 26 



(351) 



