370 



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



Fig. 696. 



Schizostoma Spilhnanii. — Shell striate, subcyliudrical, rather thick, 

 yellowish-brown, imperforate ; spire obtuse, conoidal ; sutures im- 

 pressed ; whorls six, very much banded, flattened, the last large ; 

 fissure oblique and rather short; aperture large, ovate and banded 

 within, obtusely angular at the base ; columella white, 

 thickened above ; outer lip sharp and sinuous. 



Operculum ovate, spiral, rather large, dark brown with 

 the polar poiuts near to the left edge, about one-fifth 

 above the basal margin. 

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

 Diameter, "48 ; length, -92 of an inch. 



Observations. — I have a number of specimens, chiefly young, from 

 Dr. Spillman, and a fine suite of difl'erent ages from Dr. rig. 698. 

 Showalter. There is much difiference among them, some ^j|||^ 

 being subcyliudrical, while others are disposed to be oval. ^^^ 

 This species is nearly allied to Wetumpkaense (nobis) and closely re- 

 sembles it in the adult state, but in the young state the two 

 species dlfi'er very much. The young of Wetumpkaense is 

 remarkably cariuate on the middle of the whorl, and this 

 is more marked on the superior whorls, the epidermis 

 being of a light yellowish horn-color, with a distinct brown 

 band on the upper portion of the whorl, and generally two 

 below, sometimes three. The Spilhnanii has a very obtuse 

 angle along the middle of the whorl, which does not show in 

 the upper whorls, which are dark brown, and the band is 

 interrupted, making the spire somewhat maculate. The ap- 

 erture is not quite half of the length of the shell. The hem is 

 not well defined. I name this after my friend Dr. Spillman, who sent 

 me a number of fine specimens, old and young. — Lea. 



Fig. 697. 



Fig. 699. 



21. S. Buddii, Lea. 



Schizostoma Buddii, LEA, Philos. Pioc, iv, p. 1G7, Aug., 1815. Philos. Trans., x, 



p. 08, t.9, f. .53. 

 Gyrotoma Buddii, Lea, BiN.VEY, Checlv Li.st, No. .308. Brot, List, p. 27. 

 Schizostoma funiculatum, Lea, Pliilos. Proc, iv, p. 167, Aug., 1S45. Philos. Trans., 



X, p. 09, t. 9, f. .50. 

 Gyrotomafuniculata, Lea, BiNNEY, Check List, No. 318. Bkot, List, p. 27. 

 MelntomafuniculnUim, Len, of REEVE, Monog., sp. 5. 

 Melatoma pagoda, Lea, of Reeve, Monog., sp. 16. 



Description.— ?>\-\q\\ striate, subfuslform, thick, dark horn-colored; 

 spire obtusely conical; sutures irregularly impressed; whorls six, 



