316 



LAND AND FRESII-"VVATER SHELLS OF N. A. [pART IV, 



Fig. 608, 



aperture large, ovately rhomboid, brown, banded within, obtusely 

 angular at the base ; outer lip sharp ; columella incurved. 



Operculum ovate, spiral, dark brown, rather rough, with tlie polar 

 point on the edge, about ^ from the base. 

 Habitat. — Coosa and Cahawba Elvers, Ala. ; E. R. Showalter, M.D. 

 Diameter, -GS of an inch; length, 1-G5 inches. 



Observations. — This is a fine large species, and among the most 

 robust yet found in the United States. It is much 

 larger than JSIelania robusta (nobis) and cannot be con- 

 founded with that species, being entirely smooth and 

 banded. The whorls are also more flattened. The 

 general character of the species is to have four broad, 

 brown bands, very strongly marked on the inside. In 

 some cases these bands are increased in width, and even 

 so combined as to make the fauces nearly black within. 

 These bauds do not quite reach the margin. Where 

 the bands are not strong, the exterior is light horn- 

 color. There is a disposition on the upper part of the 

 whorls to geniculation, and this part is there yellowish. The aper- 

 ture is nearly half the length of the shell. I have great pleasure in 

 naming this flue species after my friend, Wm. D. Hartman, M.D. of 

 Westchester, Pennsylvania, who is always ready to promote the 

 objects of natural history and other branches of science. — Lea, 



225. G. mellea, Lea, 



Melanin mellea, Lea, Proc. Acad. Nat. ScL, 1S61, p. 120. 



Goniohusis mellea. Lea, Jour. Acad. Nat. Sci., v, pt. 3, p. 224, t. 34, f. 10, 1803, Obs., 

 ix, p. 40. 



Description. — Shell smooth, subfusiform, conical, rather thick, 

 honey-yellow, sometimes banded ; spire very obtuse ; sutures regu- 

 larly impressed; whorls seven, flattened above, the last rig. 609. 

 large and inflated; aperture large, rhomboido-elliptical, 

 yellowish within ; outer lip acute ; columella thickened, 

 inflected, obtusely angular below. 



Operculum ovate, spiral, light brown, with polar point 

 near the edge and base. 



Diameter, -52 ; leugth, -98 of an inch. 



Habitat. — Coosa River, at Wetumpka, Alabama; Dr. E. R. Showalter. 



Observations.— This is a well marked species with an unusual 



