302 LAND AND FRESH-WATER SHELLS OF N. A. [pART IV. 



Diameter, -31 ; length, -78 of an inch. 



Observations. — I have seen but a single specimeu of this species. 



It is remarkable for the several greenish and brownish tints of the 

 exterior and its purple aperture. The apical whorls are pli- 

 cate. The two lower whorls have rather rugose sti-ia?. Other 

 individuals may differ from the characters given above. The 

 aperture is about two-fifths the length of the shell. It is one 

 of the pupoid group and is nearly allied to fallax, herein de- 

 scribed, but it is not so cylindrical and the aperture is longer. 



It differs also in color. — Lea. 



I am doubtful whether this is distinct from Haysiana. I 

 have before me two or three specimens which appear to occupy 

 an intermediate position between the two species. In the 

 specimens I liave examined, except Mr. Lea's tj'pe, the aper- 

 ture is white within, instead of purple. 



202. G. fallax, Lka. 



Melania fallax, Lea, Proc. Acad. Nat. Sci., 18G1, p. 120. 



Goniobasis fallax, LEA, Journ. Acad. Nat. Sci., v, pt. 3, p. 231, t. 31, f. 24, March, 

 1S(J3. Obs., ix, p. 53. 



Description. — Shell smooth, pupaeform, somewhat cylindrical, rather 



thick, either dark brown or dark horn-color, obscurely banded or 



without bauds; sutures impressed; whorls seven, slightly convex, 



the last small; aperture small, very much constricted, elon- 



Fig. 582. 

 gate elliptical; outer lip sharp; columella a little inflected, 



obtusely angular at the base. 



Habitat. — Coosa Iliver, Alabama; E. R. Showalter, M.D. 



Diameter, -34 ; lemgth, -90 of an inch. 



Observations. — This species is nearly allied to dausa, herein 

 described, but it is a smaller species, rather more cylindrical 

 and with a smaller aperture. The dark specimens are four-banded, 

 the bands being well defined inside, but obscure exteriorly. These 

 dark ones have a light line below the suture. The aperture is not 

 quite one- third the length of the shell. — Lea. 



203. G. inosculata, Lka. 



Goniobasis inosculata. LEA, Proc. Acad. Xat. Sci., p. 2!i3, 18G2. Journ. Acad, Nat. 

 Sci., V, pt. 3, p, 29G, t. 37, f. 12G, March, 18G3. Obs., i.\, p. 118, 



