MUSEUM OF COMPARATIVE ZOOLOGY. 187 



Zonites laevigatus, Pfeiffer. 

 Rugeli, W. G. B. 



See Suppl., p. 138. 



Zonites demissus, Binnet. 



The variety acerrus has been found near Fort Gibson, Indian Territory, 

 by Mr. Simpson. 



Zonites ligerus, Sat. 



A variety Stonei is thus described by Mr. Pilsbry : " From Mr. Witmer 

 Stone I have received a form of Z. ligerus differing from the type in having a 

 concave, broadly excavated base, with comparatively wide umbilicus, collected 

 by him in New Castle Co., Del. The axis in the type is barely perforated ; 

 but in this form it is a millimeter or more wide, and the base around it 

 broadly concave." (Nautilus, III. 4, p. 46, Aug., 1889.) 



Zonites intertextus, Binnet. 

 subplanus, Binnet. 

 See Suppl., p. 139. 



Zonites inornatus, Sat. 



sculptilis, Bland. 

 Elliotti, Redfield. 

 limatulus, Ward. 

 capsella, Gould. 

 Lawse, W. G. B. 



See Suppl., p. 142, Plate II., Fig. E. The name is suggested for the shell 

 figured by me in Vol. V. (Fig. 44) as Z. placentula. 



Zonites placentula, Shuttleworth. 

 See Suppl., p. 142. 



Zonites Wheatleyi, Bland. 

 See Suppl., p. 141. Clingham's Peak, N. C. (Hemphill). 

 Zonites petrophilus, Bland. 



Habersham Co., Ga. ; Clarkesville, N. C. (Hemphill). See Suppl., p. 140. 



Zonites Sterkii, Dall. 



Shell minute, thin, yellowish translucent, brilliant, lines of growth hardly 

 noticeable, spire depressed, four-whorled ; whorls rounded, 

 base flattened, somewhat excavated about the centre, which is 

 imperforate; aperture wide, hardly oblique, not very high, 

 semilunate, sharp-edged, the upper part of the columella 

 slightly reflected ; upper surface of the whorls roundish, 

 though the spire as a whole is depressed. Greater diam. 1.1, Zonites sterkii, 



, , enlarged, 



height 0.52 mm. 



