VI 11 



Solaropsis 137 



Spiraxis 166. 



Stenogyra ascendens 89 contracta 



90 lucida 90. maxima 89. 



stricta 90 

 Stenopus 119. 



Streptaxis 172. prosirata 172. 

 Streptostyla 167. 

 Strophia'l74. 

 Strophocheilus 150. 

 Stylodonta 139. 

 Subulina 169. 

 Succinea 117 



milis 188. 

 Systrophia 136. 

 Tachea 142. 

 Tapada 118. 

 Tectula 134. 

 Temesa 179. 

 Testacella Saiilcyi 22 

 Thaumasia 177. 

 Thea 137. 



Baudonii 188. hu- 



Thersites 141 



Tomigerus 148. Venezuelensis 



US 

 Tornatellina 170. Hicrosolyma- 



rum 39. Petitiana 3. 

 Torquilla 175. 

 Trachelia 179. 

 Tridopsis 135 

 Trochomorpha 132. 

 Turricula 131. 

 Ulostoma 135. 

 Unio Delcsserti 57. 

 üniplicaria 173. 

 Vallonia 139. 

 Varicella 172. 

 Vertigo 177. 

 Videna 131. 



Vitrina 115. limpida 10. 

 Vitrinella 119. 

 Xerophila 130. 

 Xesta 119. 

 Zonites 127. 



ErkläriHiig der Tafeln- 



Fig. 

 1. 2. 



3 — 5 



6. 7. 



I. 



Helix prasinata Roth. 



— Jebusitica Roth. 



— tuberculosa Cour. 



8. 9. Tornatellina Hierosolymarum 



Roth 

 10. 11. Azeca Zaeynthia Roth 

 12 — 14. Claus. Ehrenbergi Roth 

 15 — 17. — Kephissiae Roth. 

 18 — 20. — Pikermiana Roth. 



II. 



1 — 3. Melania Judaica Roth. 

 4. 5. Ancylus pileolus Fer. 

 6 — 9. Planorbis cornu Ehr. 

 10—13. — fontinalis Roth. 

 14. 15. Isidora lamellosa Roth. 

 16. 17. Limnaeus atticus Roth. 



Fig-. 

 1 —3. Helix Stauropolitana A. Schm. 

 4 — 11. — Pampelonensis A Sclim. 



IV. 



1. Cyclostoma chordiferum Pfr. 



2. 3. Cyclostoma basicarinatum Pfr 

 4-6 Helix Santacruzensis Pfr. 



7. 8. Bulimus Riisei Pfr. 

 9. 10. — extinctus Pfr. 



1. 2. Pupa rudis Pfr. 



3. — latilabris Pfr. 

 4. 5. Cylindrella planospira Pfr. 

 6. 7. — cyclostoma Ffr. 



8. 9. — Camoensis Pfr. 



10. 11. — chordata Pfr. 



