NO. 1707. SHELLS FROM MEXICO AND GUATEMALA— BARTSCH. 323 



somewhat produced at the periphery; columella short, curved, revo- 

 lute, truncated anteriorly; parietal wall glazed with a thin callus. 



The type (Cat. No. 207776 U.S.N.M.) was collected by Nelson and 

 Goldman near Bolanos, Jalisco, Mexico. It measures: Length 63.7 

 mm., diameter 27.5 mm., length of aperture 31.0 mm. 



Named for Henry A. Pilsbry. 



EXPLANATION OF PLATE 33. 



All figures natural size. 



Figs. 1, 3, 4, and 6. Euglandina nelsoni Bartsch. 

 Figs. 2, 7, and 8. Oryiphalina pittieri Bartsch. 

 Fig. 5. Euglandina pilsbryi Bartsch. 



