102 AMERICAN SPECIES OF VERTIGO. 



1878, p. 215, f. 120; Man. Amer. Land Sh., 1885, p. 191. 

 STERKI, Nautilus iv, p. 9, footnote; iii, 125 (Sewanee, Tenn. ; 

 St. Croix, W. I.). PILSBRY, Proc. A. N. S. Phila. 1900, 133 

 (Cades Cove and Tuskeegee Mt., E. Tenn.). TEATOR, Nau- 

 tilus iii, 69 (Dover Plains, Dutchess Co., N. Y.). PLEAS, Naut. 

 vii, 68 (Henry Co., Indiana). GARDNER, Naut. viii, 76 (Long 

 Island, N. Y.). CLAPP, Naut. xiv, 64 (Mt. Agamentieus, 

 Me.). BLANEY, Naut. xviii, 46 (Ironbound I., Me.). 

 WALKER, Moll, of Michigan 1906, p. 518, f. 152 (Petoskey, 

 Charlevoix, Crystal Lake, Benzie Co. and Huron Mts., Mar- 

 quette Co., Mich.). JOHNSON, Fauna of New England, no. 

 13, 1915, p. 214 (Bethel, Me., Francestown, N. H.). 



There is an extremely small crest close behind the lip, and 

 a rather large oblique depression over the palatal folds. The 

 basal fold is subcolumellar in position, and rarely it is absent. 

 As Morse says, it is smaller, lighter-colored and more trans- 

 parent and delicate than V. gouldii, and it is less distinctly 

 striated. The teeth are smaller, especially the palatals. 

 Length 1.5, diam. 0.9 mm. ; 4% to 4% whorls. 



According to Morse, it occurs under dead leaves and on 

 bark, in hardwood groves. It appears to be rare except in 

 Maine. 



The specimens at hand are from New England and New 

 York. The western records, Michigan, Ohio, Indiana, and 

 those from East Tennessee I have not been able to verify 

 personally. Dr. Sterki writes that he has ' * no specimens from 

 Michigan and Ohio; some records may have been founded on 

 misidentification. It appears to be northeastern." 



Dr. Sterki contributes the following notes: "After again 

 looking over a good deal of material, including a number col- 

 lected by E. S. Morse, I come to the conclusion that V. ~bol- 

 lesiana is specifically distinct from gouldii, though some speci- 

 mens of the latter resemble it closely. V. bollesiana is rather 

 uniform in size, length 1.3 to 1.6 mm. (1) The striae are 

 slighter, finer, than in goiddvi, often subobsolete, sometimes 

 subregular, very fine and crowded. (2) the form is oval or 

 ovoid, never cylindric. (3) it is generally of lighter color, 

 corneous, not reddish or brownish. (4) the configuration of 



