GONIOBASIS. 273 



Ooservations. — A ucat, pretty species, of rather plain appearance. 

 Compai'cd witli JI. gracilior (nobis), it is broader, slioTrter, and of 

 darker color ; the broad, deep cincture on the body-whorl and beau- 

 tiful red bands in the interior, so conspicuous in Fig. 521. Fig. 525. 

 JI. ffracilior, are also "wanting. From athleta it dif- 

 fers by its shorter, more acute form, and bj' the ^f. if'Jl 

 absence of folds. It is less slender than JL viridula. 

 — Anthony, 



Melania fnnehralis. — Shell conic, smooth, solid, of a dark chest- 

 nut color ; spire elevated and generally abruptly truncate ; whorls 

 from 3-5 only remaining, slightlj^ convex ; aperture ovate, within 

 bluish; columella white, tinged occasionally W'ith purple; sinus small. 

 Habitat. — Tennessee. 



Observations. — A very neat, pretty species with no A^ery decided 

 Fig. 527. Fig. 526. character to distinguish it from allied species. May 

 be compared with M. brevispira (nobis), but is far 

 more solid in its texture, of a darker color, and its 

 surface is more polished and shiniug; much less 

 slender too than brevispira, and that species is never 

 so abruptlj' decollate. It appears to be an abundant species. — 

 Anthony. 



This species is narrower and more elongated than the typical 

 form, M. aclusta, and has not the j'cllowish, sutural band of 

 that species. 



Goniobasis Cumherlandiensis. — Shell smooth, acuminately conoidal, 

 rather thin, reddish-brown ; spire somewhat elevated ; sutures Fig. 528. 

 regularly impressed; Avhorls eight, slightly convex; aper- 

 ture small, subrhomboidal, white or purple within ; lip acute, 

 slightly .sinuous; columella w-hite or purple, inflated and 

 contorted. 



Habitat. — Gap Spring, Cumberland Gap, Tennessee ; Capt. 

 Lyon: and Knoxvillc, Tennessee; "William Spillman, M.D. — Lea. 



174. G. furva, Lea. 



Melania f una, Lea, Pliilos. Trans., x, p. 299, t. 30, f. 7. Obs., v, p. 55. IJinnet, 

 Check List, Xo. 115. Brot, List, p. 38. 



Description. — Shell smooth, conical, rather thick, dusky; spire 

 rather elevated; sutures furrowed; whorls flattened : aperture small, 



L. F. W. S. IV. 18 



