254 NEW MELANHXE! OF THE UNITED STATES. 



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Genus ANCULOSA. 

 Anculosa turbinata. PI. 35, fig. 60. 



Testa lsevi, subrotunda, crassa, ponderosa, tenebroso-cornea, trivittata, ; spira obtusa, vix exserta ; suturis 

 valde impressis ; anfractibus quaternis, ultimo pergrandi ; apertura magna, ovata, intus albida, trivit- 

 tata, ad basim recurvata ; columella incurva, impressa ; labro aeuto, expanso, siuuato. 



Shell smooth, subrotund, thick, heavy, dark -horn color, three-banded ; spire ob- 

 tuse, scarcely exserted; sutures very much impressed; whorls four, the last very large; 

 aperture large, ovate, within white and three-banded, recurved at the base ; colu- 

 mella incurved, impressed ; outer lip acute, expanded and sinuous. 

 Anculosa turbinata, Proc. Acad. Nat. Sci., 1861, p. 54. 



Hob. — North Alabama, Prof. M. Tuomey and Dr. Lewis. Tuscaloosa, Dr. Budd. 



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

 Diam. -56, Length -70 inch. 



Remarks. — I have seen only three specimens of this species. One, that which is 

 figured, I have had for some years. It is not easily confounded with any species I 

 know, being more turbinate than any which has come under my notice. It is broad 

 above and pointed below, and has an abrupt curvature near the base of the columella 

 made by the impressed callus over the umbilical region. The best specimen has 

 three well-defined brown bands, more distinct within, the other two have them indis- 

 tinct. These bands do not reach the edge, and the upper one is much the larger. 

 There is a disposition on the callus above and below to be tinted with brown. 



Anculosa Formosa. PI. 35, fig. 61. 



Testa laevi, globosa, subtenui, diaphana, vel luteola vel crocata, valde vittata et maculata ; spira depressa; 

 vix conspicua ; suturis impressis ; anfractibus ternis, ultimo grandi et valde ventrieoso ; apertura 

 grandi, subrotunda, intus pallido-crocata et tenebroso vittata; columella, interne et superne incrassata 

 et pallido-purpurata ; labro acuto et valde expanso. 



Shell smooth, globose, rather thin, semi-transparent, yellowish or saffron color, very 

 much banded and maculate ; spire depressed, scarcely conspicuous ; sutures depressed ; 

 whorls three, the last large and very ventricose ; aperture large, rounded ; within pale 

 saffron, with dark bands ; columella thickened below and above and pale purple ; outer 

 lip sharp and very much expanded. 



Operculum small, thin, with the polar point below the centre towards the inner 

 edge. 



Anculosa formosa, Proc. Acad. Nat. Sci., 1860, p. 187. 



Sab. — Coosa River, Shelby County, Alabama, E. R Showalter, M. D. 



My cabinet and cabinet of Dr. Showalter. 

 Diam. -38, Length '44 inch. 



Remarhs. — I have three specimens before me of this very beautiful species. While 



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