218 EXPLANATION OF PLATES, VOL. 28. 



FIGURES PAGE 



1-3. Planogyra asteriscus Mse. Douglas Lake, 

 Michigan. 1, genitalia. 2, penis and ac- 

 cessories from glycerin jelly mount. 3, 

 internal view of pallial complex 197 



4. Sirohilops texasiana Pils. & Ferr. New 

 Braunfels, Texas. Genitalia (ovotestis 

 omitted) 195 



5-8. StroMlops aenea Pils. Philadelphia, Penna. 



5, penial apex from glycerin jelly mount. 



6, radula. 7, genitalia. 8, internal view 



of pallial complex 194 



Drawn by H. B. B. 



Plate 27. 

 Scales and labels as in plate 26. 



1, 2. Pupoides marginatus nitidulus Pfr. Aruba, 

 Dutch West Indies. 1, genitalia. 2, 

 radula 200 



3, 4. Gastrocopta octonaria Pils. Bonaire, Dutch 

 West Indies. 3, terminal genitalia. 4, 

 radula 204 



5-7. Gastrocopta armifera Say. Williams 



Canyon, Colorado. 5, genitalia. 6, penis 

 and accessories from glycerin jelly mount. 



7, radula 203 



8. Nesopupa wesleyana Anc. Kalihi, Oahu. 



Radula 206 



9, 10. Bothriopupa tenuidens C. B. A. Jamaica, 



British West Indies. 9, radula. 10, ter- 

 minal genitalia 207 



Drawn by H. B. B. 



Plate 28. 

 Scales and labels as in plate 26. 



1, 2. Pronesopupa admodesta Migh. Nuuanu, 

 Oahu. 1, terminal genitalia from glycerin 

 jelly mount. 2, radula 205 



3. Pupisoma mediamericanum Pils. Necaxa, 



Mexico. Jaw 204 



4-7. Pupisoma comicolense H. B. B. Necaxa, 



Mexico. 4, genitalia. 5, internal view of 

 pallial complex. 6, radula. 7, penis and 

 accessories from glycerin jelly mount . . . 204 



