MUSEUM OF COMPARATIVE ZOOLOGY. 149 



shell a fluted appearance. In old shells these epidermal fringes are somewhat 

 worn away, leaving the ridges upon which they stood. Greater diameter, 

 5 mm. ; lesser, 4^ mm. ; height, H mm. 



In some specimens as many as six teeth may be observed, none of which can 

 be seen on the aperture. (Wetherby.) 



Helicodiscus Jimhriatus, Wetherby, Journ. Cincinnati See. Nat. Hist., IV., Dec, 

 1881, p. 9. 



Ocoee District, Eastern Tennessee. 



The figure is drawn from one of Prof. Wetherby's specimens. 



Perussacia subcylindrica, Linn. (p. 187.) 

 To the synonymy add : — 



Cionella (Zua) Morseana, Dohertt, Quart. Journ. Conch., I. 342, PI. IV. Fig. 2 



(1878). 



Pupa armifera, Say. (p. 205.) 



I am indebted to M. de St. Simon of Toulouse for a knowledge of the lin- 

 gual dentition. There are 68 rows of 14-1-14 teeth, of which 7 on each side 

 of the median line are laterals. 



Pupa contracta, Say. (p. 207.) 

 To the synonymy add: — 

 Pupa Cincinnatiensis, Judge, Quart. Journ. Conch., I. 343, Fig. (1878). 



Fossil Species of Pupa. (p. 213.) 



Add: — 



Anihracopupa, Whitfield, Amer. Journ. Sc, [3,] 21, 126, cut. 



Vertigo ovata, Say. (p. 219.) 



To the synonymy add: — 



Zonites Upsoni, Calkins, Valley Naturalist, St. Louis, Vol. II. No. 4, Dec, 1880, 

 p. 53, Fig. Home and Science Gossip, Rockford, Illinois, March, 1881. 



An examination of the lingual membrane alone would prove this to be a 

 Zonites. Until then I retain it in Vertigo, as identical with or allied to ovata. 

 I have, however, on Plate I. Fig. L, given a copy of one of the original figures, 

 leaving out the striae, which are exaggerated in the original, and here give the 

 original description, from which the species may be recognized, should it prove 

 a Zonites. 



