586 



TEST ACE A ATLANTIC A. 



a. [normalis] . 



/8. scrobiculata, WoU. 

 gracilis, Lowe 

 Paivana, Pfeiff. 

 bicolor, Morel. 



a. [normalis] . 



)3. subarmata, Woll. 



SUCCINEID^. 



Succinea, Brajf. 



Sanctfe-Helen^, Lesson 

 picta, Pfeiff. 

 Bensoniaua, Forbes . 

 Lowei, Dohrn 

 WoUastoni, Dohrn 



Limnaea, Draj). 

 auricularia, Linn. 



j8. ribeirensis, Reib. 

 ovata, Drap. 



y3. Stiibeli, Reib. 

 triincatula, Miill. 



Physa, Draj). 

 acuta, Drap. 

 canariensis, Boiu'g. 

 Forskalii, Ehrenb. 



Planorbis, Guett. 

 glaber, Jeffr. 

 Reissi, Mouss, 

 coretus, Desh. 



Ancylus, Geoffr. 

 striatus, Q. et G. 



a. [normalis] . 



/3. depauperatus, Woll. . 

 rupicola (Shuttl.), Mouss. . 

 Milleri, Dohrn . 



Seotio II. OPERCULATA. 



CYCLOSTOMATID.a:. 



Cyclostoma, Montf. 

 elegans, Miill. 

 Ifevigatum, W. et B. 

 canariensis, d'Orb. 



o. palmensis, Woll. 



j8. raricosta, Woll. . 



y. iniequalis, Woll. . . 



5. lanzarotensis, Woll. 



e. adjunctus, Mouss. 



CYCLOPHORID.S:. 



Craspedopoma, Pfeiff. 



hicidum, Lowe 

 n. [normalis] , 



