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 tenuis Pfr. Moll. Mex , 21 



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



del 25 



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



del 26 



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

 chester, del 26 



(351) 



