Vol. 32, pp. 247-248 December 31, 1919 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



TWO NEW LANDSHELLS FROM CALIFORNIA.' 

 BY PAUL BARTSCH. 



The United States National Museum has received two sets 

 of landshells from Mr. Herbert N. Lowe, collected at Pt. Reyes, 

 California, which prove to be undescribed races of Epiphragmo- 

 phora tudiculata and Epiphragmophora californiensis. 



In order to determine these, it was necessary to subject the 

 members of both of these species to a critical examination, the 

 results of which will be published in a paper now in preparation 

 in which figures of the two new subspecies described below will 

 be given. 



Epiphragmophora tudiculata awania, new subspecies. 



Shell very small, elevated helicoid dark horn colored, streaked with fine 

 retractively slanting lines of brown and an occasional dark varicial streak. 

 There is also a slender brown spiral band present at the periphery, which 

 is edged on either side by a lighter zone. Nuclear whorls one and a half 

 feebly wrinkled and obsoletely granulose. Postnuclear whorls well rounded, 

 appressed at the summit, marked by coarse retractively slanting wrinkles, 

 the last one and a half turns being decidedly malleated. The middle whorls 

 show a few fine spiral striations near the summit. Base inflated, strongly 

 rounded, marked by the continuation of the axial wrinkles and strong malle- 

 ations. Aperture large, subcircular, oblique; peristome slightly expanded 

 and reflected, white; interior of the aperture pale brown, when viewed di- 

 rectly, horn colored when seen by transmitted light, showing the peripheral 

 band and the two lighter zones bordering it. 



The type, Cat. No. 336,831 U. S. N. M., and two specimens were col- 

 lected by Mr. Herbert N. Lowe, on the steep southern slope at the extreme 

 west end of Pt. Reyes, California, under plants of Mesembranthemum in 

 May, 1918. The three specimens yield the following measurements: 



iPublished by permission of the Secretary of the Smithsonian Institution. 

 52— Pboc. Biol. Soc. Wash., Vol. 32, 1919. (247) 



