144 BULLETIN OF THE 



Zonites significans, Bi.vnd. (p. i;]2.) 



Plate II. Fig. G. 



By an unfortunate nii.<take anotlier .-hcU is Hl^hu'ccI on p. 132. That now 

 given coireclly I'L-pre.seiit.s tiiu species. 



Eoan Mountain, Mitchell Co., Xoilh Carolina (Mrs. G. Andrews). 

 To synonymy add : — 



Uijalina signijicuns, Harpkr, Journ. Gin. Soc. N. IL, Oct., 1881, p. 258, Figs. 2, 2 a. 

 Zonites multidentatus, Binsey. (p. i;]o.)' 



Plate II. Fig. F. 



For comparison with the last-mentioned and i'uUowing species an enlarged 

 figure is given. 



Zonites Andrewsi, W. G. Bikn 



Plate II. Fig. D. 



The specimen figured was received i'rom Mrs. G. Andrews, who collected 

 it on Iloan Mountain, Mitchell Co., North Carolina. It has the general 

 appearance of Z. significans, multidentatus, and lasmndon, l)Ut difi'ers so de- 

 cidedly from each that I propose to designate it Ijv the name of its discoverer. 

 A full .specific description can be given later. Compared with Z. lasmodon, 

 it has fully 8 whorls, is (ii nun. in diameter, the umliilicus 1 mm, wide, whilst 

 lasmndon with 7 wliorls, is 7 mm. in diameter, with an umbilicus 2 mm. wide : 

 the Roan Mountain shell has also five parallel lamella;, while lasinodon has 

 onlv two, or at most three, and does not show the successive rows of lamellae 

 which are characteristic of Andrewsi, radiating from the centre. 



From Z. sirjnificans it differs in its larger size, greater number of whorls, 

 much wider umbilicus, and in the character of its internal denticles, wliich are 

 long and winding on the wall of the whorl ; while in significans the denticles 

 are simply erect and conical, with broad base. The same diflerences distin- 

 guish it i'rom midtidmtaius, which is still smaller tlian significans, and has a 

 much narrower umljilicus. 



Zonites Aiidirwsi, W. G. Bixv., Ann. N. Y. Acad. ScL, Vol. I. No. 2, p. 358, 

 ri. XV. Fig. D, 187'J. 



VITRINIZONITES, W. G. Bixn. 



Plate III. Fig. A. 



Animal heliciform, blunt before, in motion greatly acuminated behind : 

 mantle subcentral, protected by an external shell : two longitudinal furrows 



