TWO NEW LAND SHELLS OF THE EPIPHRAGMOPHOEA 

 TRASKII GROUP. 



By Paul Bartsch, 



Curator, Division of Marine Invertehrates, United States National Museum. 



My short jDaper on the Californian land shells of the Epiphrag- 

 tnophora traskii group ^ resulted in having a lot of land shells sent to 

 me by west American collectors for classification. 



Among these are two lots which represent races not heretofore 

 described. They were collected by Mr. Plerbert N. Lowe, of Long 

 Beach, California, in mountains from which no material was avail- 

 able at the time the paper mentioned above was prepared. It is 

 quite possible that careful collecting in the higher altitudes of other 

 isolated peaks in Southern California and adjacent Mexican terri- 

 tory will bring additional forms to our attention. 



Mr. Lowe has kindly donated both types to the United States 

 National Museum, and I take great pleasure in bestowing the name 

 Epiphragmophofa cuyamacensis lowei on the new form from Palo- 

 mar Mountain. 



EPIPHRAGMOPHORA CUYAMACENSIS LOWEI. new subspecies. 



Plate 83, figs. 1, 2, 3. 



Shell very large, depressed, helicoid, broadly, openly umbilicated, 

 horn colored, with a chestnut band at the periphery which is flanked 

 on each side by a narrow zone, a little lighter than the general color 

 of the shell. Nuclear whorls one and a half, moderately rounded, 

 marked by retract'ively curved, incremental lines and scattered pa- 

 pillae. Postnuclear whorls marked by somewhat irregularly spaced 

 and irregularly developed, retractively slanting, depressed lira- 

 tions, which give to the surface a somewhat roughened aspect, and 

 rather strongly developed, elongated papillae which are arranged 

 in series that form curves, slanting in just the opposite direction 

 from the incremental lines. These papillae are rather regularly de- 

 veloped and quite evenly distributed on the upper surface; on the 

 lower surface they are shorter and inclined to be hemispherical. 



1 Proc. U. S. Nat. Mus., vol. 51, pp. 609-619, pis. 114-117, 1916. 



Proceedings U. S. National Museum, Vol. 54— No. 2246. 



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