FAMILY HELIC1D.E HELIX. 45 



This species has been found from Vermont to Georgia. Tn this Stale it has, I learn, also 

 been found, but I am not aware of the precise locality. It occurs under pieces of wood, and 

 among rotten leaves. I have not had an opportunity of examining it, and am indebted to Dr. 

 Gould for the description and figure. It can only be confounded with the H. labyrinthica ; 

 but its polished surface, and the absence of parallel ridges wilhin its mouth, afford sufficiently 

 distinctive characters. 



{EXTRA-LIM1TAL ) 



H. major. (Binney, Bost. Jour. Vol 1, p. 473, pi. 12.) Whorls six, with coarse oblique raised 

 stria?; revolving strise indistinct or wanting. Color, brownish horn. Diameter, 1 "5. Southern 

 Stales. 



Closely allied to albolabris, and supposed by Femssac and others to be a southern variety of 

 that species. 



H. inflecla. (Say, Ac. Nat. Sc. Vol. 2, p. 153. Binney, lb. Vol. 3, p. 358, pi. 9, fig. 1.) Aperture 

 trilobate. One or two teeth on the inner margin of the lip. Pillar-lip with a large lamelliform 

 tooth. Umbilicus closed. Epidermis brownish horn, with occasionally fine hair-like projections. 

 Diameter, • 8. North-Carolina and the Western States. 



H. irrorata. (Say, 1. c. Vol. 2, p. 370. Var. lactea, Ferussac.) Shell subglobular, depressed, 

 imperforate. Whorls five; wrinkles on the body- whorl obsolete, more distinct on the spire. Su- 

 ture declining much near the mouth. Lip reflected, but not flattened. Color, pale reddish brown, 

 with numerous white spots, and about four deeper brown obsolete bands. Diameter, • 6. Penn- 

 sylvania. 



H. corpuloides, Montagu. (Adams, Am. Jour. Vol. 38, p. 193.) Near Boston. 



H. egena. (Say, 1. c. Vol. 5, p. 120.) Shell small, polished, convex. Whorls five, rounded, not 

 distinctly wrinkled. Aperture transverse, rather narrow. Lip simple, its lower margin termi- 

 nating at the base of the shell. Umbilicus none, but deeply indented. Diameter, 0-1. Penn- 

 sylvania. 



H. mitchelliana. (Lea, Am. Phil. Soc. Vol. 6, p. 87, pi. 23, fig. 71 ) Shell above obtusely conical, 

 below inflated, longitudinally and finely striate: whorls five. Lip reflected; aperture nearly round. 

 Imperforate. Color, corneous transparent. Diameter, 0-7. Ohio. Allied to jejuna and ligera. 



11. porcina. (Say, Exped. to St. Peter's, Vol. 2, p. 257, pi. 15, fig. 2.) Shell small, depressed. 

 Epidermis rugose, with numerous minute bristles. Whorls rather more than four, depressed 

 above, rounded beneath, forming a very obtuse angle rather above the centre of the whorl. Umbi- 

 licus open rather small, profound. Lip simple. Color, yellowish brown. Diameter, 0*3. N. 

 W. Territory. 



H. vancouvrensis. (Lea, Am. Phil. Tr. Vol. 6, p. 87, pi. 23, fig. 72.) Shell large, planoconvex, 

 flattened below and shining, longitudinally striate, widely umbilicate. Whorls five, rounded. Lip 

 below somewhat reflexed, above depressed, forming a sinuous edge : columella short, callous. 

 Color, corneous. Diameter, 1 •!. Oregon. 



