74 THE NAUTILUS. 



"Almost always it is on the ground or on the lower surface of a 

 stone which rests on the ground. I have never seen the snail crawl- 

 ing ahroad, even in wet weather. The shells are invariably covered 

 with a dark deposit, which is removed with some difficulty." (H. H. S.) 



Also found, but more rarely, on Smithers Mountain and near 

 Gurley and Princeton. 



Animals almost black, very shy in confinement, spending most of 

 their time either half or completely buried in the earth. 



This most interesting and strongly-marked species is another of 

 Herbert H. Smith's finds, and I take great pleasure in naming it 

 after him. While bearing a striking resemblance to an overgrown 

 P. inflecta, it is readily separated by the character of the hairs and 

 the absence of the basal lip-tooth ; it is also close to P. subpalliata, 

 but is apparently most closely related to P. inflecta. 



Monte Sano is an outlier of the Cumberland Plateau, so that this 

 may be considered a species of that most interesting faunal region. 



Types No. 5388 of my collection and co- types in the collections of 

 the Academy of Natural Sciences, Bryant Walker and T. H. Aldrich. 



Polygyra inflecta approximans n. subsp. Plate III, fig. 6. 



Differs from typical inflecta in the closely approximated lip teeth, 

 the space between them measuring only about \ mm. in width, while 

 in the typical form it measures 1 mm. and over. The aperture is 

 also wider, in proportion to its length, and less rounded in front; 

 body-whorl narrower at the aperture, not swollen back of the lip. 

 In other characters like the type — whorls about 4^. 



A considerable proportion of the shells have the umbilicus partly 

 open, and while this can hardly be considered a specific character 

 the proportion is greater than in any lot of inflecta I have seen. 



Greater diam. 7^, lesser 6^, alt. 4^ mm. 



Greater diam. 8, lesser 7, alt. 5 mm. 



Greater diam. 8^, lesser 7^, alt. 4| mm. 



Greater diam. 8|, lesser 7|, alt. 5 mm. 



Marion, Ala., wdiere it practically replaces the typical form as 

 only four dead shells of the latter were found. Collected by Her- 

 bert H. Smith in May, 1905. A specimen of P. inflecta from Jack- 

 son, Ala., is figured for comparison, pi. 3, fig. 5. 



Types No. 5389 of my collection and cotypes in the collections of 

 the Academy of Natural Sciences, Bryant Walker and T. H. Aid- 

 rich. 



