1910.] 



NATURAL SCIENCES OP PHILADELPHIA. 



529 



coarsely sculptured. We have seen no Sagda agreeing with Ferussac's 

 figures. 



One of us found many long-dead shells of S. spei in a thicket on the 

 western slope of Long Mountain at Rockfort. The shells are small and 

 low but otherwise agree with the types. Two apparently adult 

 examples measure: 



Alt. 13, diam. 17.5 mm.; whorls 7+. 

 " 12, " 16 " " 7." 



Sagda anodon n. sp. 



The shell is imperforate, rather thin, the height usually about three- 

 fourths the diameter; ay hit e under a thin smooth pale yelloYV cuticle. 

 Spire convexly Ioyv conic, the apex projecting slightly. Whorls about 

 6 J, slightly convex \ r ery slowly increasing, irregularly, rather weakly 

 striate. The periphery is broadly rounded. Base convex, excavated 

 in the center. Aperture lunate, without internal lamellae. 



Alt. 9.8, diam. 13.8 mm. 

 " 9.5, " 13 

 " 8.5, " 13.3 " 



Rockfort, near Kingston. Types No. 101,137, A. N. S. P., collected 

 by Dr. A. P. Brown, May, 1910. 



The type lot consists of "dead" shells. A fresh one, not quite 

 mature, collected at Rockfort by Mr. Wm. J. Fox, supplied the item 

 of color. It is possible that this shell is the Helix epistylium var. 

 delaminata, very inadequately described by Professor C. B. Adams, 

 from Easington, St. Davids, a place some distance east from Rockfort. 



Fig. 10. — Sagda simplex. 

 Sagda simplex n. sp. Fig. 10. 



The shell is imperforate, much depressed, the height slightly over 

 half the diameter (56 to 57 per cent.); thin, white under a very thin, 

 glossy pale yellowish cuticle. Spire convex, whorls 6^ to 6f, slightly 

 convex, very slowly increasing, with weak sculpture of irregular growth- 

 wrinkles. The last whorl is rounded peripherally, convex beneath, 

 rather broadly but not deeply excavated around the axis. The aper- 



