280 LAND AND FRESH-AVATER SHELLS OF N. A. [pART IV. 



Observations. — A simple species like M. simplex and M. gracilis. Its 

 pale, sutural region is perhaps its most obvious character.— AntJwny. 

 Melania Ucolorata.— Shell small, slender, brownish-green, at the 

 sutures flavescent; whorls C-7, flattened, encircled above with nar- 

 Fig. 542. row lines, the last expanded in front. Aperture ovate ; 

 lip dilated in front, sinuate behind; tinged with pink. 

 Habitat. — Camp Creek, near Madison, Indiana. 

 Longitude, \ ; latitude, \ poll. 



Observations.— An unadorned species, rather remarkable 

 for its elongated, slender form, and well rounded whorls. 

 It comes near M. exilis and 31. terebrans having the lip threaded as in 

 these species. — Anthony. 



Melania data.— Shell thin, gracile, elongate, light horn-color, paler 

 at the sutures; whorls 8-9, rather flat, carinate above; aper- rig.5t3. 

 ture ovate, efi'ased before ; columella thin. 

 Habitat. — Maumec River, Ohio. 

 Longitude, one ; latitude, three-tenths poll. /up] 



Observations. — A plain, slender species of an unusually- 

 pale color. The whorls vary much in obliquity and con- 

 vexity. It is similar in many I'cspects to 31. bicolorata. — Antliony. 

 Melania succinulata. — Shell elongate, acuminate, ovately conical, 

 thin, plain, pinkish, horn-colored; whorls 7-10, rather convex, the 

 apical ones carinate at the sutures, the last equalling two-thirds 

 the length of the shell, subattenuate in front; aperture narrow, 

 ovate, contorted, somewhat dilated in front. 

 Habitat. — Ohio. 

 Length, |; width, \ of an inch. 



Observations. — A smooth, delicate species, much thinner than usual, 

 and when well cleaned nearly as transparent and amber-colored as a 

 siiccinea. It may be compared with 31. clava'formis. — Anthony. 

 Fig. nu. 3Ielania varicosa. — Shell olivaceous, conical, with seven 

 convex whorls, flattened at the apex; later whorls marked 

 with thick, varicose lines ; aperture elliptic. 

 Habitat. — Ohio. 

 Length, 5 of an inch. 



Observations. — Allied to, but less slender than, M. exilis. It 

 may prove to be a variety of 31. rufula, Hald. — Haldeman. 



3Iclania angiLstispira. — Shell thick, elongate, very slender; color 

 reddish-brown, with a narrow, pale line at the suture; whorls 9-10, 



