136 AMERICAN SPECIES OF VERTIGO. 



places iii Amaraglik, in the small willow thickets by the ruins 

 Ekalluit at about 400-500 ft. above the sea (Holler). 



P. [upa] hoppii MOLLER, Index Molluscorum Groenlandiae, 

 1842, p. 4. PFEIFFER in Kiister, Conchyl. Cab. p. 163, pi. 19, 

 f. 29, 30; Monogr. ii, 328; iii, 536; viii, 366. BINNEY, Bost. 

 Joum. vii, p. 147, pi. 7, f. 2. WESTERLUND, Malak. Blatter 

 xxii, 1870, p. 57. W. G. BINNEY, Terr. Moll. vol. v, 1878, p. 

 198, f. 102? (Greenland; Anticosti I.). Pupa (Vertigo) 

 hoppii Moll., MOERCH, Amer. Joum. Conch, iv, 1868, p. 30, 

 pi. 3, f. 6-9. Vertigo hoppii Moller, DALL. Alaska, Land and 

 Fresh Water Moll., p. 29. Pupa steenbuchii BECK, Verz. Kiel., 

 1847, p. 76 (nomen iiudum}. 



I have not seen this species, which evidently stands close to 

 V. modesta, differing by the more reduced palatal folds. 

 Morch notes that "it looks most allied to Pupa arctica 

 Wallenb. ' ' He states that ' ' the figure of Kuster is very bad. ' ' 

 Those he gives, from pen drawings by Moller, do not look much 

 better. Some show parietal and columellar lamellae, others 

 none. Two of these figures are copied in my figs. 6, 6a. 



A var. with "the shell hyaline, glossy, white, destitute of 

 epidermis," based upon "several live specimens with and 

 without teeth, at Amaraglik," is noted by Morch. 



The localities Ungava, Labrador, and Anticosti Island are 

 doubtful, and may perhaps refer to some form of V. modesta 

 Say. 



Westerlund states that an example of this species from 

 Greenland, in the Berlin Museum, is much larger than P. 

 arctica Wallenb., almost larger than P. laevigata Kok., has a 

 far more rounded aperture, and there is no trace of a tooth 

 in the palate. 



27. VERTIGO KRAUSEANA (Reinhardt). 



Shell dextral, long-ovate, rimate, reddish brown, but little 

 shining, the surface closely and finely striate under the lens. 

 Whorls 5, convex, parted by a deep suture, the last three of 

 about equal width, but gradually and regularly increasing in 

 height, the last whorl forming about two-fifths the total height 

 of the shell, not ascending to the aperture. The aperture is as- 



