■o-^ 18 €-o- 



Merziana, Pfeifer. 

 Metaformis, Forv. 

 Idem, do. 

 Idem, do. 

 Idem, do. 

 „^Metcalii, Pfeifler. 

 „^^dem, do. 

 Micans, do. 

 «Slichaudi, Deslis. 

 Microdonta, do. 

 Microscopia, PfeiflVr. 

 Mighelsiaiia, do. 

 Mindanaensis, Sow. 

 xMirabilis, Feir. 

 '^Idem, do. 

 ''OMitchelliana, Lea. 

 •^ Monochroa, Sow. 

 'Monodonta, Lea, 

 Monticula, Sow. 

 Idem, do. 

 Idem, do. 

 Morbida, Mordet. 

 -Moricandi, Sow. 

 Mouleti, Le Guillaume, 

 Mühlfeldtiana, Pfeiffer. 

 -Multilineata, Say. 

 -Multistriata, Ueslis. 

 'Muralis, Müller. 

 ■ Idem, do. 

 ' ^tMuscarum, l^ea. 

 ^ Mutabilis, Ziegler. 



^Naninoides, Beiisoii. 

 "" Nautiliformis, Porro. 

 /Negleeta, Draj). 

 Nemoralina, Petit. 

 >Nemoralis, Lin. 

 •O-Mem, do. 



"^Aäem, do. 



'''\Jdem, do 



^ Idem, do 



dem, do. 



dem, do. 

 Idem, do. 

 Nemoraloides, Adams. 



Nemorensis, Müller. 

 ^/'Niciensis, Ferr. 

 ^^„^igritella, Pfeifer. 



Idem, do. 



Nilagirica, do. 



Niteiis, Michd. 



/; 



■Nitida, Müller. 



^^Obvia, Hartm. 

 xObvolutn, Müller. 

 ^Olivotorum, (iiiicliii. 

 ^01 i Vieri, Ferr. 



Idem, do. 



Opal i 11 a, Sow. 



Orbiciilata, Ferr. 



Orbitula, Sow. 



Idem, do. 



Oreas, Koch. 



Ovum, Valene.Ä^?^«^W. 



Idem, do. 



Ovveniana, Pfeiffer. 



Oxytropis, Lowe. 



Paciniana, Pliilippi. 



Pachystyla, Pfeifer. 

 ^Palliata, Say. 

 ^Pnlludosa, Pfeiffer. 

 ,..Pan, Brodp. 

 ,-Idem, do. 



Pauayensis, do. 



Papilla, Müller. 

 -Papyracea, Brodp. 



Popaifiufl ; d'Oi ' big. 



Parilis, Ferr. 



Pariatoris, Bivou. 



Parmula, Brodp. 

 .-Paraiana, d'Orbrg. 

 "^Paupercula, Lowe. 



Pellis serpentis, Chemn 

 /Pellita, Ferr. 

 ■"^Pelodes, Pfeiffer. 



yPomatia, Lin.^^r. ^^<:«^^<Wd- 

 jv<.Idem, do. i^. ^<m<>/^V<»W<, 

 ^Idem, do. !/■. £a^u<u4u^hu,tt^ 

 ^ Pomum, Pfeiffer. 



Ponderosa, do. 



Porpliyria, do. 



Portoricensis, do. 

 ^.^Porto-sanctana, Sow. 

 ^Pouzolzi, Payr. 



-Idem, do. iT. IAAyit,a>Uf^ , 

 ^^Pressli, Schmidt. 

 ^Profunda, Say. 

 ^Protea, Ziegler. 



Protensa, Ferr. 



Psammoicus, Morel. 



Puella, Brodp. 

 ^Pulchella, Müller. 

 ^Jdem, do. 

 ^^ulcherrima, Sow. 

 ^Idem, do. 



Idem, do. 



Idem, do. 



, Idem, do. 



^^dem, do. 



Pulchrior, C. B. Adams 

 l^un 



^Pyramidata, Drap. 

 ^Idem, do. 

 V^Idem, do. 



Pyramiden a, Wagner 



^Pensylvanica, (ireen. 

 ^Peracutissima, C. B. Ad. 



Personata, Draj). 

 r Peruviana, Lmrk. 





'Nitidiuscula, Sow. 

 -^Nitidosa, Ferr. 



Nivea, Ziegler. 



Nobilis, do. 



Nobilis, Pfeifer. 



.Norrissii, Sow. 

 '^Noscibilis, Ferr. 

 ^^Nouleti, Guill. 



Novae llibcniiae 



Nucleola, Kaiig. 



-Nummus, Elnonb. 



Nuttalliana, l^ea. 



Nux-deiiticulata, Chemn 

 vObesa, Beck. 



Qu( 



Perspectiva, Say. 



ctulata, Sow.U vj!^9**^^*'^i'ff^ 



Pfeifferi, Philippi. 



•Phleboiihora, Low. 



Picta, Born. 



Picturata, C, B. Adams. 



Pila, do. 



Pilelformis, Mor. 



Pileus, Müller. 



Pisana, do. 

 r^Ideni, do. 

 •"^Planata, Chemn. 

 ^^Planorboides, Raffiii. 



»Planulata, Jjinrk.. 

 ^Platychela, Menko. 



Plebeja, Mich;ind. 



Idem, do. 



Plicata, B.irn. 

 -Plicatula, Lmrk. 

 ^ Politissinia, Pfeiffer. 



Poeyi, Petit. 



Belrchroa, .fcieMv. 



Id«m, do. 



Wem, do-. 



Id«nr, titi. 

 i] Hetnp^o. 

 .^^^Polygyrata, Born. 

 1\,Polymorpha, Lowe, yöa \ 



(I 



(..^.-Pj'renaica, Urap. 

 l,---Pyrrhozona, Philippi. 



Quadridentata, Brod]). 



■Quimperiana, Ferr. 



Eadula, Pfeiffer. 



Raftinesquea, Ferr. 



Rangelina, Pfeiffer. 



Raugiana, Ferr. 



Raspaillii, Payrand. 



Ravergiensis, Ferr. 

 I vRavida, Benson. 

 "^Rectangula, Pfeiffer. 

 y^'Keeveana, do. , 



Refuga, Gould. 



Regalis, Benson. 



Idem, do. 



Idem, do. 

 [^Regina, Brodp. 



Regularis, Charp. 

 I^^Eesiilendens, Philijuii. 

 1 Retusa, Pfeiffer. 

 ' Revelata, Ferr. 

 I Richmondiana, Pfeiffer. 



■Roissyana, Ferr. 



I 



/ 

 //Idem, do. 



!«^dera, do. 



l-^dem, do. 



j/^dem, do. 



4: 



osacea, Müller. 



dem, do. 



\ 

 Rosarium, Pfeiffer. 

 ■ Rota, Brodp. 

 Rotatoria, v. d. Busch. 



