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 CO\TRACTA Say vol. ii. p. 324, pi. Ixx. fig. 2. 



Piqm contracta Say, (Carychium,) Blnnev's ed. p. 25. 



Pfeiffek, 1. c. iii. 556. 

 Pm/jw corticarla Pfeiffer, Symb. ii. p. 54, (an. var. /?V Pfr. 1. c.) 

 Pujm deltostoma Chakpentier, in Chemnitz, ed. 2, p. 181, pi. 21, figs. 17-19. 

 Vertigo co7itracta Adams, Gen. ii. 172, absq. descr. 



The figure of Kiister is more like armifei'a. His 

 description is of contracta. 



Pupa deltostoma is evidently this species. The descrip- 

 tion is as follows : — 



T. late jjrofundeque rimata, ovato-conoidea, iiitidula, glabrluscula, 

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

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

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

 expanso, margiuibus conjunctis. Tennessee. 



PUPA DECORA Gould vol. ii. p. 327, pi. Ixxi. fig. 2. 



Pupa 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. 



Verlifjo pentodon Say (Binney's ed.) p. 27. 



Piqxi jjentodon Chemnitz, ed. 2, p. 125, pi. xvi. figs. 24-26. 



Pfeiffer, 1. c. iii. 557. 

 Piqm 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 : — 



