94 THE NAUTILUS. 



Vallonea ameeicana Aiicey m.?. — The description of this has 

 been published by Dr. Sterki in Proc. Acad. Nat. Sci. Phila., 1893, 

 p. 266. The locality of Ancey's types, however, is not stated, so it 

 seems desirable to record that they were from Davenport, Iowa, col- 

 lected by Professor D, S. Sheldon. V. parvula, it will be noticed, 

 is recorded by Sterki from the same locality. It may be added that 

 I saw Ancey's MS. description in May, 1890.— T. D. A. Cocherell. 



Strobila hubbardi. — Noting your comments on S. lahyrlntliica 

 and vars., suggested to me the idea of comparing them with S. hub- 

 bardi. 



There is evidently a close affinity between the two species, and 

 the same tendency to variation in the number of teeth. I find in' 

 the Hubbardi three constant teeth, but in nearly one-half of our 

 collection of several hundred there is an extra tooth between the 

 second and third tooth counting from the umbilicus, and in some 

 cases a fifth tooth beyond the third. The variety S. Hrebeli found 

 here in our locality is also an approach to S. hubbardi in its de- 

 pressed spire and dark color. They are also found in similar sta- 

 tions often together under the bark of old logs or on palmetto trees, 

 hidden in dirt or old rubbish. Hubbardi is a very shy snail, and I 

 have spent many days looking for them. At first I thought three 

 or four a good day's find. — G. W. Wfbster. 



VlTRiXA LIMPIDA IX PENNSYLVANIA. — In my note on Vitrina 

 limpida Gld. in Pennsylvania which you published in the August 

 Nautilus, I promised to report the results of future visits to the 

 place where the shells were found. I went down yesterday after- 

 noon and found 24 living shells, and as I could only go over a very 

 small portion of the hollow, owing to a very heavy growth of nettles, 

 brambles and other noxious weeds, I think the shells must be very 

 plenty — in fact, I do not think I " worked " ov»i- two or three 

 square yards at the most. ■■'■ * * '■" 



In continuation of my letter of October 2 : On the 8th inst. I 

 again visited the place where I found the Vitrina limpida Gld., and 

 got 38 living specimens in about one and one-half hours, and went 

 •over exactly the same ground as in my former visit, though 

 this time the space worked over was less than on October 1. The 

 colony appears to be in a very flourishing condition, although dead 

 shells are very plenty. * * * -•' 



