PHYSA. 148 , 
C. Shell conspicuously striate. 
20. PHYSA SPARSESTRIATA, Tryon. 
Plate 7, fig. 7. 
Shell ovately cylindrical, spire rather pro- 
duced, apex acute, sutnre well impressed; 
surface malleated and covered with distant 
sharp, raised growth-lines; texture quite fra- 
gile; outer lip not thickened; columella nar- 
row and turning somewhat to the right 
towards the base, very slightly or not at all 
folded. 
Length 12, diam. 7 mill. 
San Joaquin Valley, California. 
This species somewhat resembles in its strise 
Ph. D’ Orbignyana, Lea, but does not other- 
wise accord with that shell. It is much more 
slender, more fragile, and has a longer spire 
than Ph. heterostropha, Say. In form it is 
somewhat like Ph. virginea, Gould; but that 
is a smooth, polished species, of a richer color, 
frequently almost golden in hue. It is a very 
distinct shell, of very constant character. 
(59) 
