Lingual deutition of Hyalina viridu'a. [MoR^ii.J 



and of the same form as the species of the subgenus already 

 described. 



Fig. 44. 



Hyalina indentata, Say. — Shell subperforated, flattened, tliin, 

 pellucid ; epidermis highly polished, corneous ; whirls rather more thau 

 four, rapidly enlarging, with regular, sub-equidistant, radiat- 

 ing, impressed lines, which on the body-whirl extend to the 

 centre of the base, outer whirl expanding towards the aper- 

 ture ; suture well impressed ; aperture rather large, trans- 

 verse ; peristome simple, acute, very thin, at its inferior 

 extremity terminating at the centre of the base of the shell ; 

 umbilicus none, but the umbilical region is indented. Greater 

 diam. 5, lesser 4^ ; height 2.} mill. 



Helix indentata, Say, Journ. Acad. II, 372 (1822) ; Binney's 



ed. 24.— BiNNEY, Bost. Journ. Nat. Hist. Ill, 415, pi. 



xxii, f. 3 (1840) ; Terr. Moll. II, 242, pi. xxix, f. 2.— DeKay, N. Y. 



Moll. 31, pi. ni, f. 26 (1843).— Gould, Invert. 181, f. 109 (1841).— 



Adams, Vermont Mollusca, 160 (1842). — Chemnitz, 2d ed. I, 21, pi. 



xxxiv, f. 12-15. — Pfeiffer, Mon. Hel. Viv, I, 59. — Reeve, Con. 



Icon. 730 (1852).— W. G. Binney, T. M. IV, 119.~Morse, Amer. 



Nat. I, 413, f. 28 (1867). 

 Hyalina indentata, Morse, Journ. Portl. Soc. I, 12, f. 21, pi. ii, f. 11 ; pi. 



V, f. 22 (1864).— Tryon, Am. Journ. Conch. II, 246, pi. iii, f. 11 



(1866). 



Inhabits all of eastern North America, having been found 

 from Canada to Texas and from Dacotah to Florida. It is also 

 said to occur iu St. Domingo. 



