112 THE NAUTILUS. 



is very promising but it is a long road to consumption for the copper. 

 We found a lialf million dollar copper smelter in the Kaibabs and a 

 saw mill, but only two men in the mountains besides the foresters, 

 and these were at the saw mill. They had a wagon road to Fredonia. 

 In fact you can wagon from the top of the Kaibab saddle to Fredonia 

 or most any other place in that region. An auto was driven 

 through from Salt Lake while we were there to Bright Angel, on 

 the north side of the canyon across from the hotel. But from Bass 

 Station to Trumbull, 125 miles, there will be no inhabitants through 

 the winter, except Bass and John working out assessments on new 

 mines. 



Yours Truly, '^ 



Jas. H. Ferriss. 



A NEW VARIETY OF LYMNAEA STAGNALIS. 



BY FRANK C. BAKER. 



LyMN^A STAGNALIS LILLIANS var. nOV. 



Lymnaa stagnalis var., Daniels, Nautilus XXII, p. 120 

 (1909). 



LymvcBa stagnalis var.. Walker, Ann. Rep. Mich. Geol. Surv., 

 1908, 289, figure 63, No. 1 (1909). 



Shell elongate-ovate, with short spire and elongated, narrow aper- 

 ture, which is typically longer than the spire ; whorls flattened, 

 elongated, very flat-sided and sloping, especially the body whftrl 

 which is cylindrical; spire sharply acuminated; whorls 5^ to 6 ; 

 body whorl elongated, flattened, roundly shouldered ; aperture long 

 and narrow, slightly expanded ; axis strongly gyrate ; umbilical 

 region with a very minute, narrow chink ; sculpture and nuclear 

 whorls as in stagnalis appressa. 



Length, 42.00; width, 22.00; aperture length, 26.00; width, 

 13.00 mill. 



Length, 40.00; width, 19.50; aperture length, 23.50 ; width, 

 11.75 mill. 



Length, 30.00; width, 20.00; aperture length, 24.50; width, 

 11.00 mill. 



Length, 37.50; width, 19.60; aperture length, 23.75; width, 

 12.00 mill. 



Length, 40.00; width, 19.00; aperture length, 23.25; width, 

 11.50 mill. 



