■<^ 19 €^ 



^8 



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/Rotula, Lowe. 

 ..Rotundata, Müller. 

 Rotundula, Menke. 

 Ruderata, Studer. 

 Rufa, Lesson. 

 Jlufescens, Penn. 

 ^Ideni, do. 

 ^Eugosa, Lmrk^^- 

 ^--Rugosiuscula, MicTid, 

 "^ Rupestris, Drap. 

 ^.^Rutilans, Ziegl. 

 Sagemon, Beck. 

 Sagittifera, Pfeif. 

 Idem, do. 

 Sagraiana, d'Orb. 

 Sarcinosa, Ferr. 

 Ideui, do. 

 . -öarcostoma, Webb. 

 .^Scabriuscula, Deshs. 

 -Sclimidtii, Ziegl. 

 Schroeteriana, Pfeif. 

 _,^-'Schumacheriana, do. 

 ^.-Scro^iculata, do,=./v/<»vi 

 „^egestana, Phil. '■" • 

 Semicastanea, Pfeif. 

 Semiglobosa, do. 

 ^emigranosa, Sow. 

 Semirugata, Beck. 

 ^Sericea, Müll. 

 "''^ Idem, do. 



Serpens, Spix. 

 ^•Serpentina, Ferr. 

 ^^-Idem, do. 



Serrnlata, Beck. 

 Setigera, Sow. 

 'Setosa, Ziegl. 

 '^•Idem, do. 

 ^Sicana, Ferr. 

 Similaris, do. 

 Simson, Pfeif. 

 _^iraulata, Ferr. 



Singularis, Pfeif. 

 ^Sinuuta, Müll. 

 Siqnijorensis, Brodp. 

 Sirena, Beck. 

 Idem, do. 

 Skinneri, Reeve. 

 Sobriua, Ferr. 

 ^ Soiaria, Menke. 

 / Solida, Ziegl. 

 ^ Solitaria, Say. 

 Sophiae, Gascoin. 

 Soror, Ferr. 

 «•Speciosa, Say. 

 y ^Idem, do. 

 Idem, do. 

 Spectabilis, Pfeif. 

 Spengleriana, do. 

 .Sphacrica, Sow. 

 /idem, do. 

 y^Adem^ do. 

 / Sphaerion, do. 

 Sphaerita, Hartm. 





-Spiriplana, Olivier. 



Spixiana, Pfeif. 



Splendida, Drap. 



Splendidula, Pfeif. 



Squalida, Ziegl. 



Squamosa, Ferr. 



Stabilis, Sow. 



Stellaris, Low. 

 ^--Stolephora, Val. 



Strangulata, C. B. Ad. 



Striatella, Anthony. 



Striatula, Lin. 



Strigata, Müll. 



Strigella, Drap. 



Stuartiae, Sow. 

 ^»Studeriana, Ferr. 



Subplanata, Petit, 

 ^^ubplicata, Sow. 

 ^Subrostrata, Ferr. 



Succinea, Pfeif. 



Siilcosa, do. 



Sulphurosa, Morelet. 



Superba, Pfeif. 



Supertexta, do. 



Swainsoni, do. 

 ^/Sylvatica, Drap, 

 ^oldem, do. 



«Syriaca, Ehrenb. 



Taeniata, Webb. &Ber. 



•Tamsiana, Dunk. 

 '^^Taurica, Kryn. 

 ■^^^^ectiformis, Sow.<J^«>€ 



Tenera, do. 



Idem, do. 



Tenerrima, Adams. 



Tephrodes, Pfeif. 



'Pestudinalis, Lowe. 



Thersites, Brodp. 



.Thiarella, i\p.b^&.Ber. 



Thyreus, Reeve. "y** 



JTliyroides, Say. 

 i-^Tichostoma, Pfeif. 



Tortilabia, Lesson. 



Tourannensis, Souley. 



Townsendiana, Lea. 



'Tranquebarica, Fabric. 

 'f^VTriaria, Frivaldskv. 



Trichotropis, Pfeif. 



Tricolor, do. 

 >*Tridentata, Say. 



Tridentina, Ferr. 

 >^rrifasciata, Chemn. 



Trigonostoma, Pfeif 



Tristis, do. 

 jL^Trizona, Ziegl^^Ä^ä«/ 

 i Trizonalis, Gratel. 

 li-— Trochiformis, Ferr. 

 it— Idem, do. 

 ^rrochoides, Poiret. 

 iL-Troscheli, Pfeif. 

 1 Turnens, Deshs. 

 j Tuckeri, Pfeif. 



Tunicata, C. B. Ad. 



.Turbiniformis, Pfeif. 



Turbinoides, Bi'odp. 



Idem, do. 



Turbo, Pfeif. 



Turricula, Lowe. 



Umbrosa, Partsch. 

 ^TTndata, Lowe. 



Undulata, Ferr. 

 ^.^^nguicula, do. 



Ungulina, Lin. 



Unicolor, Pfeif. 

 ^,-trnidentata, Chemn. 

 yldem, do. 



■Valenciennesi, Eydoux. 



Valida, C. B. Ad. 



Variegata, Chemn. 



Vellicata, Forbes. 

 ^Vermiculata, Müll. 

 ^Idem, do. 

 r Verticillus, Ferr. 

 >Villosa, Drap. 

 /Virgata, Montf. 

 ^Idein, do. 

 ,Jdem, do. 



-Idem, do. 



Virgo, Brodp. 



Viridis, Dshs. 



Idem, do. 



Vitrina, Wagner. 



Vitrinoides, Dshs. ^. 



Vittata, Müll. JfV«^'«-^**^ 



Vortex, Pfeif. 

 , Vulcani'a, Lowe. 



Wagneri, Pfeif. 

 ^Waltoni, Reeve. 

 ^Webbiana, Lowe. 

 ^Wollastoni, do. 



Xanthodon, Ant. 



Xanthotricha, Pfeif. 



Xystera, Valcnc. 



Zaffarina, Terver. 

 ^Zaleta, Say. 



Zehuensis, Brodp. 



Idem, do. 

 —Zeus, Jon. 

 ^Ziegleri, Schmidt. 



Zollingeri, Pfeif. 

 ^Zonaria, Lin. 

 — Zonata, Studer. 

 ^Zonifera, Sow. 

 ''Idem, do. 



-LA HO Stoma 



Olobulosa, Lmrk. 

 -•Ringens, Lin. 

 Turbinatus, Pfeifer. 



Tomogeres 



.^Clausus, S()ix. 

 Cumingii, Newcomb. 



-[Strcptaxis 

 Alveus, Dunker. 

 Comboides, d'Orb. 



