144 BULLETIN OF THE 



Zonites significans, BLAND, (p. 132.) 



Plate II. Fig. G. 



By an unfortunate mistake another shell is figured on p. 132. That now 

 given correctly represents the species. 



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

 To synonymy add : 



Hyalina significans, HARPER, Journ. Cin. Soc. N. H., Oct., 1881, p. 258, Figs. 2, 2 a. 



Zonites multidentatus, BINNEY. (p. 133.) 



Plate II. Fig. F. 



For comparison with the last-mentioned and following species an enlarged 

 figure is given. 



Zonites Andrews!, W. G. BINN 



Plate II. Fig. D. 



The specimen figured was received from Mrs. G. Andrews, who collected 

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

 appearance of Z. significans, multidentatus, and lasmodon, but differs so de- 

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

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

 it has fully 8 whorls, is 67? mm. in diameter, the umbilicus 1 mm. wide, whilst 

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

 the Roan Mountain shell has also five parallel lamellae, while lasmodon has 

 only 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. significans it differs in its larger size, greater number of whorls, 

 much wider umbilicus, 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 broad base. The same differences distin- 

 guish it from multidentatus, which is still smaller than significans, and has a 

 much narrower umbilicus. 



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

 PI. XV. Fig. D, 1879. 



VITRINIZONITES, W. G. BINN. 



Plate III. Fig. A. 



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

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



