SYSTEMATIC INDEX XV 



P&GE 



Fam. :PHYSIDiE 96 



Genus : 1. Physa, Draparnaud, 18UL ... 96 



1. P. fontinalis (Linue) 97 



2. P. rivalis (Turton) 99 



Genus : 2. Aplexa, Fleming, 1820 ... 100 



1. A. hypnorum (Linnc) 100 



(Sub-order: STYLOMMATOPHORA) 103 



(Division : Orthurethra) 103 



Fam.: PUPILLID^ 103 



Genus : 1. Pyramidula, Fitzinger, 1833 . . 103 



1. P. rupestris (Draparnaud) . . . 103 



Genus : 2. Abida, Leach, in Turton, 1831 . 105 



1. A. secale (Draparnaud) .... 106 



Genus : 3. Lauria, Gray, in Turton, 1840 . 107 



1. L. cylindracea (DaCosta) .... 108 

 (Sub-gen. : Leiostyla, Lowe, 1852) 



2. L. anglica (Ferussac) 110 



Genus : 4. Pupilla, Leach, in Turton, 1831 . 112 



1. P. muscorum (Linne) 112 



Fam.: VERTIGINID^ 115 



Genus : 1. Vertigo, Miiller, 1774 .... 115 



1. V. pusilla, Muller 116 



2. V. antivertigo (Draparnaud) . . . 117 



3. V. substriata (Jeffreys) .... 119 



4. V. pygmsea (Draparnaud) . . . 119 



5. fV. parcedentata (Al. Braun) . 121 



6. V. mouliusiana (Dupuy) .... 122 



7. V. lilljeborgii, Westerlund . . . 123 



8. V. alpestris, Alder 123 



(Sub-gen. : Vertilla, Moquin-Tandou, 1856) 



9. V. angustior, Jeffreys 124 



Genus : 2. Truncatellina, Lowe, 1852 . . 125 



1. T. cylindrica (Ferussac) .... 126 



2. T. britannica, Pilsbry (em.) ... 128 



