92 NEW-YORK FAUNA — MOLLUSCA. 



Melania SUBULARIS. 



plate vii. fig. 138. 

 (STATE COLLECTION.) 

 U. subularis. Lea, Trans. Arn. Phil. Soc. Vol. 4, p. 100, pi. 15, fig. 30. 



Description. Body elevated, with an acute spire, regularly attenuated from the body-whorl. 

 Whorls ten to twelve, quite flat ; base angular ; outer lip not regularly rounded ; suture sub- 

 cancellate. 



Color. According to Mr. Lea, horn-color ; in my specimens, the centre of the whorl had a 

 broad revolving rufous band, becoming darker towards the tip : vicinity of the sutures chalky 

 white. 



Length, 0-7-1 •2; of aperture, 0-2 -0-3. 



This species occurs along the shores of Lake Erie. In the numerous specimens which I 

 collected, I was not fortunate enough to obtain a single perfect collection, and am indebted to 

 Mr. Lea for a portion of the figure. 



(EXTRA-LIMIT AL.) 



M. unAulata. (Say, Des. terr. and fluv. shells, p. 17.) Shell large, elevated conic. Whorls 

 8, not convex : suture not impressed, hardly obvious, undulated by revolving the inferior 

 crenate boundary of the impressed band ; the superior boundary of the band elevated and 

 sometimes nodulous. Lip near the base, much protruded ; sinus very obtuse. Color, brown. 

 k^i^iS. \.o canaliculata. Length, 1'5. Ohio river. 



M. hildrethiana. (Lea, Tr. Am. Phil. Vol. 8, p. 164, pi. 5, fig. 1.) Shell smooth, fusiform, 

 rather thick : spire short, pointed ; sutures deeply impressed. Whorls 5, convex : aperture 

 large, angular at base, ovate. Color, horn-colored externally; aperture white or purple. 

 Length, 0'37; width, 0-25. Ohio river near Marietta. 



M. castanea. (Lea, 1. c. pi. 5, fig. 2.) Shell smooth, club-shaped, rather thin. Whorls 8, somewhat 

 convex: sutures small; spire elevated, carinated towards the apex. Color, dark brown; 

 aperture purple. Length, 0*67 ; width, 0-25. Tennessee. 



M. Imvis. (Id. 1. c. pi. 5, fig. 3.) Shell smooth, obtusely conical, rather thin, shining. Whorls 7, 

 rather convex ; sutures linear ; spire rather short, carinate towards the apex ; aperture rather 

 large, more than one-third of the total length, elliptical, angular at base. Color, yellowish ; 

 aperture whitish. Length, 0'55; diameter, 0'25. 



M. kirtlandiana. (Id. 1. c. pi. 5, fig. 4.) Shell smooth, acutely conical, rather thick, shining. 

 Whorls 9, rather convex : sutures impressed ; spire elevated, carinated towards the apex. 

 Length, 0-87; width, 0-3. Indiana, Ohio. 



M. taitiana. (Id. 1. c. pi. 5, fig. 5.) Shell smooth, conical, rather thin, shining. Whorls rather 

 convex : suture impressed ; spire truncate, carinate towards the apex; aperture small, ellip- 

 tical, subangular at base. CoZor, horn, often with revolving bands. Length, 0-8; diameter. 

 • 25. Alabama. 



