226 NEW MBLANIDiE OF THE UNITED STATES. 



elliptical, four-banded within; obtusely angular at the base; outer lip acute; colu- 

 mella whitish and incurved. 



Operculum narrow elliptical, spiral, light brown, with the polar point near the 

 inner margin above the base. 



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



Hab. — Coosa River, Alabama, E. R. Showalter, M. D., and E. Foreman, M. D. 



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

 Diam. -41, Length -78 inch. 



Bemar7cs. — This is a remarkably regular elliptical species, pointed at the base and 

 apex. There are five specimens before me. One is an old worn one, which I long- 

 since received among other species from Dr. Foreman. It looks much like the young 

 or immature of Melania ovalis (nobis), but is not so thick, nor has it striae. It has some- 

 what the aspect oiLithasia Showalterii (nobis), but it has not the callus of that genus, and 

 it is not compressed at the sides, but is regularly convex. All the specimens under 

 examination, have four regular bands, and one of them is disposed to be striate. The 

 folds on the upper whorls are represented below by irregularities on the whorls which 

 interrupt the upper band and give it a maculate appearance. 



GONIOBASIS GLANDARIA. PI. 34, fig. 14. 



Testa lfevi, fusii'orrai, crassa, viridi-lutea. quadrivittata ; spira obtusa ; suturis valde et irregulariter 

 impressis ; anfractibus septenis, convexiusculis, ultimo grandi ; apertura elongato-elliptica, sub- 

 constricta; intus albida et valde vittata ; labro acuto, subsinuoso ; columella arcuata, superne et 

 infernc incrassata, paulisper canaliculata et contorts,. 



Shell smooth, fusiform, thick, greenish yellow, four-banded; suture irregularly 



and much impressed ; whorls seven, slightly convex, the last large ; aperture long 



elliptical, subconstricted, whitish within and much banded ; outer lip acute, subsinu- 



ous ; columella arcuate, thickened above and below, slightly canaliculate and twisted. 



Melania glandaria, Proc. Acad. Nat. Sci., 1861, p. 120. 



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



My cabinet and cabinet of Dr. Showalter. 

 Diam. "42, Length '86 inch. 



Remarks. — This is a solid species nearly an inch long, and reminds one of the form 

 of an acorn. It is near to some of the forms of nebula, herein described, but has not 

 the dark maculations of that shell, the four dark brown bands being distinct on the 

 inside. The aperture is half the length of the shell. The upper band is well defined 

 on the upper whorls. 



GONIOBASIS QUADRIVITTATA. PI. 34, fig. 15. 



Testa, lsevi, subelliptica, crassiuscula, viridi-lutea, nitida ; spira, obtuse conoidea ; suturis valde 

 impressis ; anfractibus octonis, convexiusculis ; apertura, subconstricta,, rliombo-ovata. intus albida, 

 quadrivittata; labro acuto; columella incurva, ad basim angulata. 



