GONIOBASIS. 329 



is copied from Reeve and rejoresents a shell in museum 

 Anthony) is inflata, then the two are identical. This species 

 differs from G. virgulata, by its obtusely angled whorls and 

 somewhat diamond-shaped aperture. 



240. G. fusiformis, Lea. 



Melanin fusi/ormis, Lea, Philos. Proc, ii, p. I'i, Feb., 1841. Philos. Trans., viii, p. 

 167, t. 5, f. 9. Obs., iii, p. 5. DeKay, Moll. N. Y., p. 93. Tkoost, Cat. Shells 

 Teun. WiiEATLEY, Cat. Shells U. S., p. 25. Bixney, Check List, No. 117. 

 Catlow, Conch. Nomenc, p. 180. Brot, List, p. 40. 



Description. — Shell smooth, fusiform, rather thin, yellow, pointed 

 at the apex; spire short; sutures linear; whorls six, the last being 

 large and inflated ; aperture ovately elongated, whitish. 



Habitat. — Tennessee; Dr. Troost. 



Diameter, -27 ; length, -50 of an inch. 



Observations. — This is a very remarkable species in regard to its 

 form, resembling as it does the young of some species of co?- Fig. 633. 

 umbella. The aperture is about two-thirds the length of the 

 shell, and is somewhat angular at base above it turns inward. 

 One of six individuals before me has two rather broad bands. 

 On the superior whorls may be observed an indistinct stria. — Lea. 



The figure is a copy of that of Mr. Lea. Much like G. am- 

 busta, when j'oung, Init more inflated, and the aperture more 

 broadly rounded below. 



241. G. bellula, Lea. 



Melania bellula, Lea, Proc. Acad. Xat. Sci., p. 122, ISGl. 



Goniobasis bellula, Lea, Jour. Acad. Nat. Sci., y, pt. 3, p. 237, t, 34, f. 35, March, 

 18C3. Obs., ix, p. 59. 



Description. — Shell striate, subfusiform, somewhat thick, pale horn- 

 color, four-bauded ; spire obtuse ; sutures much impressed ; whorls 



about five, somewhat convex, the last large ; aperture rather 

 Fip;. 634. 



large, elliptical, whitish within and spotted; outer lip sharp; 



columella white, inflected, obtusely angular at the base. 



Operculum elliptical, spiral, dark brown, with the polar 



point near the inner edge about one-fourth from the base. 



Habitat. — Yellowleaf Creek, Shelby County, Alabama; 



E. E. Showalter, M.D. 



Diameter, --IS; length, '78 of an inch. 



