234 NEW MELANIDiB OF THE UNITED STATES. 



GONIOBASIS PKOPINQUA. PI. 34, fig. 29. 



Testa lsevi, subcylindracea, subcrassa, luteola, quadrivittata ; spira subclevata, eonoidea ; suturis valde 

 impressis; anfractibus senis, supcrne planiuseulis ; apertura clliptica, parviuscula, intus albida, et 

 vittata ; labro acuto ; columella paulisper incrassata, infcrne rotundata. 



Shell smooth, subcylindrical, somewhat thick, yellowish, four-banded ; spire some- 

 what raised, conical ; sutures very much impressed ; whorls six, flattened above ; 

 aperture elliptical and rather small, whitish and banded within; outer lip acute; 

 columella slightly thickened and rounded below. 



Melania propinqua, Proc. Acad. Nat. Sci., 1861, p. 119. 

 Jlal,. — -Coosa and Cahawba Rivers, Alabama, E. R. Showalter, M. D. 

 My cabinet and cabinets of Dr. Showalter and Dr. Lewis. 

 Diam. -33, Length -90 inch. 



.RemarJes. — This species is very closely allied to Melania (Goniobasis) pwpaidea, 

 Anth., but it differs in being more cylindrical, in being smaller, and in having the 

 base of the aperture more rounded. Most of the specimens are decollate. One 

 has a few raised striae. In some there is a disposition to have a shoulder under the 

 sutures. 



Goniobasis Coosaensis. PI. 34, fig. 30. 



Testa striata, fusiformi, cornea, quadrivittata, subcrassa ; spira subelevata, conica ; suturis valde im- 

 pressis ; anfractibus septenis, convexiusculis, sulcatis ; apertura constricta, clongato-elliptica, iutus 

 albida et quadrivittata ; labro acuto, suberenulato ; columella paulisper incrassata, mcurvata, ad 

 basim obtuse angulata. 



Shell striate, fusiform, horn-color, four-banded, rather thick ; spire rather raised, 

 conical ; sutures very much impressed ; whorls seven, slightly convex, sulcate ; aper- 

 ture constricted, elongate elliptical, whitish and four-banded within ; outer lip acute, 

 subcrenulate ; columella slightly thickened, incurved and obtusely angular at the base. 

 Melania Goosaensis, Proc. Acad. Nat. Sci., 1861, p. 118. 



Hub. — Coosa River, Alabama, E. R. Showalter, M. D. 



My cabinet and cabinet of Dr. Showalter. 

 Diam. -42, Length 1-2 inch. 



Remarlcs. — About a dozen specimens of various ages are before me. They all bear 

 the four well-marked bands, more distinct from the inside. The transverse stria) are 

 coarse and rounded, cord-like, making well impressed sulcations. This species re- 

 minds one of Melania (Goniobasis) Vanuxemiana and ovalis (nobis), but it is a more 

 fusiform shell, and has a longer aperture. Some of the young are almost free from 

 striae, and are disposed to be plicate at the apex. 



Goniobasis ellipsoides. PI. 34, fig. 31. 



Testa striata, fusiformi, viridi-lutescente, subcrassa; spira subclevata, conica; suturis irregularitcr im- 

 pressis; anfractibus septenis, vix convexis; apertura. subconstrieta, clongato-elliptica, intus albida; 

 labro acuto; columella albida, inferne paulisper recurva, ad basim subrotundata. 



