144 BULLETIN OL TlIK 



Zonites significans, Bland, (p. i:]2.) 



Plate II. Fi{j. G. 



By can unfortunate mistake another sbuU is ligured on ji. 132. That now 

 given coiTecLly represents the species. 



Roan Mountain, Mitchell Co., North Car(jlina (Mrs. G. Andrews). 

 To synonymy add : — 



Ili/alina sirjnijicans, HAErER, Journ. Cin. Soe. N. II., Oct., 1881, p. 258, Figs. 2, 2 a. 

 Zonites multidentatus, Ijixsky. (p. i;j:3.)' 



Plate II. Pifj. P. 



For comparison with the last-mentioned and folldwing sjiecies an enlarged 

 figure is given. 



Zonites Andrewsi, W. G. Binn 



Plate II. Pig. D. 



The specimen figured was received irom ]\Irs. G. Andrews, who collected 

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

 apiiearance of Z. signiticans, multidentatus, and Idsnwdon, hut dill'ers so de- 

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

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

 it has fully 8 whorls, is ()A nnu. in dianictiT, ihe unil)ilicus 1 mm. wide, whilst 

 lasmodon with 7 whorls, is 7 mm. in diameter, with an umljilicus 2 mm. wide : 

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

 only two, or at most three, and does not show the successive rows of lamellaj 

 which are characteristic of Andrewsi, radiating from the centre. 



From Z. signijicans it differs in its larger size, greater number of whf>rls, 

 much wider und)ilicus, and in the character of its internal denticles, which are 

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

 are simply erect and conical, with broa<l base. The same difl'erences distin- 

 gui.sh it from mi'lfidintiftus, which is still smaller than signijicitns, and has a 

 much narrower umbilicus. 



Zonites Andrnrsi, W. G. Binv., Ann. N. Y. Acad. Sci., Vol I. No. 2, p. 358, 

 r\. XV. Fig. D, 187y. 



VITRINIZONITES, W. G. Binn. 



Plate III. Pig. A. 



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

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



