PUPA. 143 



It will be noticed that the wood-cut does not show the 

 basal tooth, as does the plate referred to. Its presence 

 seems exceptional. 



Adams (1. c.) compares it with Pupa marginata Dr., 

 while the above authorities consider it identical with P. 

 muscorum of Europe. 



PUPA CONTRACTA SAY vol. ii. p. 324, pi. Ixx. fig. 2. 



Pujm contracta SAY, (Carychium,) Barney's ed. p. 25. 



PFEIFFER, 1. c. iii. 556. 



Pupa corticaria PFEIFFEE, Symb. ii. p. 54, (an. var. /3? Pfr. 1. c.) 

 Pupa deltostoma CHARPENTIER, in Chemnitz, ed. 2, p. 181, pi. 21, figs. 17-19. 

 Vertigo contracta ADAMS, Gen. ii. 172, absq. descr. 



The figure of Kiister is more like armifera. His 

 description is of contracta. 



Pupa deltostoma is evidently this species. The descrip- 

 tion is as follows : 



T. late profundeque rimata, ovato-conoidea, niticlula, glabriuscula, 

 alba ; spira convexo-conica, obtusa ; anfr. 5 convexis, ultimo basi rotun- 

 dato, antice calloso ; apertura trigona, quadriplicata, pi. 1 lamelliformi 

 in pariete aperturali, 1 in columella, 2 in palato, peristomate unclique 

 expanse, margin! bus conjunctis Tennessee. 



PUPA DECORA GOULD vol. ii. p. 327. pi. Ixxi. fig. 2. 



Pitjm decora PFEIFFER, Mon. Hel. Viv. iii. 555. 



Vertigo decora ADAMS, Gen. Eec. Moll. ii. 172, (absq. desc.) 



PUPA PENTODON SAY vol. ii. p. 328, pi. Ixii. fig. 1. 



Vertigo pentodon SAY (Binney's ed.) p. 27. 



Pupa pzntodon CHEMNITZ, ed. 2, p. 125, pi. xvi. figs. 24-26. 



PFEIFFER, 1. c. iii. 557. 

 Pupa curvidens PFEIFFER, 1. c. ii. 



In the second volume of the Monograph, Pfeiffer places 

 both Tappaniana and curvidens in the synonymy. De 

 Kay's figure shows no tooth. Say's type is still preserved 

 in the Philadelphia Academy. Adams's description is as 

 follows : 



