54 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Seb. 



Epiphragmophora tudiculata allyniana, new subspecies 



(Plate 4, figs, la-lc) 



Diagnosis: Shell moderately thin, low-conic to depressed- 

 globose, strongly umbilicate, the umbilicus narrow and steep- 

 walled, but permeable to the apex and having a diameter of 

 about one-eleventh the major diameter of the shell. Whorls 

 about 6, convex, the last strongly inflated and somewhat de- 

 scending in front. Aperture rounded, ample, and very oblique, 

 its deflection about 40°. Edges of peristome converging and 

 connected by a thin parietal callus. Periostracum quite glossy, 

 but roughened over most of the later whorls by numerous fine 

 incremental lines and a very fine, close malleation like small 

 hammer dents, the latter becoming obsolete on the higher por- 

 tions of the spire and in the immediate vicinity of the umbilicus. 



Color a dull cinnamon or Prout's brown, becoming yellower 

 and paler in the umbilical region, and with a dark liver brown 

 band of a width of about 1.5 mm. on the shoulder, bordered 

 above and below by a light yellowish-brown band of about equal 

 width with the dark band and with its mate opposite, or the 

 lower in come cases a little the wider. 



Measurements: 



Maximum Minimum Altitude Diameter Number of 

 diameter diameter umbilicus whorls 



mm. mm. mm. mm. 





Type 32.0 25.5 20.0 3.0 6 



Paratype in C. A. S. 



Con 29.4 24.3 19.3 2.6 6^ 



Smith Coll.. 32.3 25.8 18.8 2.7 6 

 Berry Coll. 



" 4851 29.3 23.3 17.5 2.7 6 



" Smith Coll.. 26.3 21.5 16.6+ 2.7 6 



Type: Cat. No. 4850, Berry Collection. Paratypes in the 

 collection of the California Academy of Sciences and Cat. No. 

 1969, collection of A. G. Smith. 



Type Locality: Jasper Point, Mariposa County, California; 

 Allyn G. Smith, May, 1917; five living adults taken. 



