NO. 2170. CALIFORNIAN LAND SHELLS— BARTSCH. 619 



EPIPHKAGMOPHORA TRASKII , subspecies? 



The collection of the United States National Museum contains an 

 immature specimen (Cat. No. 106779a, U.S.N.M., from Mariposa 

 County, California, which appears to belong to a race differing from 

 those noted above. The papillations disappear shortly beyond the 

 nuclear whorls. The spiral lines on the last whorl are strong and 

 deeply incised on the upper surface and feeble on the lower. 



EXPLANATION OF PLATES. 



Plate 114. 



All figures on thia plate are of Epiphragmophora traskii trashii Newcomb. 



Figs. 1-3. Top profile and bottom of the largest specimen, Cat. No. 12336, U.S.N.M. 



4-6. Top profile and bottom of the smallest specimen, Cat. No. 174123,U.S.N.M. 



7-9. Top profile and bottom of the norm., i. e., the average specimen, Cat. No. 



39643, U.S.N.M. 



10-12. (The pathologic form called Epiphragmophora traskii, var. saudus by 



Hemphill), Cat. No. 174140 U.S.N.M. 

 13-15. (The pathologic form called Epiphragmophora trashii, var. verna by Hemp- 

 hill), Cat. No. 174129, U.S.N.M. 

 16-18. The tallest specimen. Cat No. 201207, U.S.N.M. 



Plate 115. 



Figs. 1-3. Epiphragmophora traskii phlyctaena Bartsch, type. 



4-6. Epiphragmophora traskii carpenteri Newcomb. 



7-9. Epiphragmophora traskii coelata Bartsch, type. 

 10-12. Epiphragmophora traskii coronadoensis Bartsch, type. 

 13-15. Epiphragmophora traskii phlyctaena Bartsch, type. 



Plate 116. 



Figs. 1-3. Epiphragmophora traskii tularica Bartsch, type. 



4-6. Epiphragmophora traskii proles Bartsch, type. 



7-9. Epiphragmophora traskii traskii Newcomb, cotype. 

 10-12. Epiphragmophora cuyavrmcensis cuyamacensis Bartsch, type. 

 13-15. Epiphragmx)phora cutjamacensis venturensis Bartsch, type. 

 16-18. Epiphragmophora cuyamacensis avus Bartsch, type. 



Plate 117. 

 Figs. 1-3. Epiphragmophora petricola Berry, para,type= Epiphragmx)phora traskii 

 traskii Newcomb. 

 4-6. Epiphragmophora traskii zechae Pilsbry, type. 



7. Epiphragmophora cuyamacensis venturensis Bartsch, type. A portion of 



the base a little behind the aperture, magnified about 25 diameters to 

 show the strong papillations. 



8. Epiphragmophora cuyamacensis cuyamacensis Bartsch, type. A portion of 



the base a little behind the aperture magnified about 25 diameters to 

 show the obsolete papillations. 



9. Epiphragmophora traskii coronadoensis Bartsch, type. A portion of the 



upper surface of the last whorl magnified about 25 diameters to show the 

 clothlike texture. 

 10. Epiphragmophora traskii coelata Bartsch, type. A portion of the upper 

 siuface of the last whorl magnified about 25 diameters to show the absence 

 of clothlike texture. 



