SYSTEMATIC INDEX. 



Order PULMONATA 



Page , Page 



. 104 Subfam. 3. Planorbitue . . 115 



Suborder Hygrophila ...... 104 



Fam. 1. LIMNJEID.E 



104 



.Subfam. 1, Ancylimc ........ 104 



1. Aiicylus, Geoff t-oy ........ 104 



1. baconi, Bourguignat . . 104 



2. ceylanicus, Benson .... 104 



3. tennis, Bourguignat . . 105 



4. verruca, Benson ....... 105 



Subfam. '2. Limnceince ........ 105 



1. Limnaea, Lamarck ...... 106 



2. Limnaea, Lamarck (sensu 



stricto) .............. 106 



1. stagnalis (Linncem) . . 106 



2. acuininata, Lamarck . . 106 



var. patula, Troschel. . 107 

 var. sulcatula, Troschel 107 

 var. aniygdalum 



Troschel ...... 107 



var. prunum, Troschel. 108 

 var. cerasum, Troschel. 108 

 var. strigata, Hanley 



# Theobald ____ 108 

 var. chlamys, Benson . 108 

 var. rofescens, Gray. . 109 

 var. syllietica, Hartley 



# Theobald .... 109 

 var. gracilior, von 



Martens ...... 109 



3. ovalis, Gray .......... 109 



var. nucleus, Troschel . 1 09 



4. tigrina, Dohrn ........ 110 



var. /3 minor ........ 110 



3. Gulnaria, Leach ........ 110 



1. pereg-er (Drapernaud) . . 110 

 "2. auricularia (Draper- 



naud} .............. HI 



3. brevicauda (Sowerby) . . Ill 



4. hookeri (Reeve) ..*.... Ill 



5. auriformis (Clessin) .. 112 



6. labiosa (Philippi) .... 112 



7. succinea (Deshayes) . ... 112 



var. i mpura ( Troschel) .113 



8. hians (SknMrby) ...... 113 



9. pinguis (Dohrn} ...... 113 



10. siamensis (Sowerby} . . 113 



11. simulans (Preston) .... 114 



4. Bulinmea, Haldeman .... 114 



1. truncatula (Jeffreys} , . 114 



2. bowelli (Preston). ..... 114 



1. Planorbis, Geoff roy 115 



1. exustus, Deshayes .... 115 



var. eburneus, Gray . . 116 

 var. brunneus, Gray. . 116 

 var. zonatus, Dunker . 116 



2. zebrinus, Dunker 116 



3. hindu, Clessin 117 



4. orientalis, Lamarck. ... 117 



5. modicus, Benson 117 



6. merguiensis, Philippi . . 118 



2. Gyraulus 118 



1. compressus (Hutton) . . 118 



2. convexiusculus (Htitton) 118 



3. labiatus (Benson) .... 119 



4. sivalensis (Hutton) .... 120 



5. hohenackeri, Clessin . . 120 



6. huttoni (Benson) 120 



7. barrakporensis (Clessin). 120 



8. himalayanus (Hutton) . . 121 



9. liratus, Westerland 121 



10. demissus, Westerland . . 121 



11. associatus, Westerland. 122 



12. elegantulus (Dohrn) . . 122 



13. nauus (Sowerby) 122 



14. rotula (Benson) 122 



15. stelzneri (Dohrn) .... 123 



16. hyptiocyclos (Benson) . . 123 



17. acutus, Clessin 123 



18. issykulensis, Clessin . . 124 



3. Hippeutes, Ayassiz 124 



1. versicolor, Wester lund . . 124 



4. Segmentina, Fleming .... 124 



1. umbilicalis (Benson) . . 125 



2. trochoideus (Benson) . . 125 



3. gruneri (Clessin) 125 



4. spirodelus, Westerlund . 126 



5. sindicus (Benson) .... 126 



6. cantori (Benson) 126 



7. calathus (Benson) .... 127 



8. caenosus ( Benson) .... 1 27 



Fam. 2. 



. 127 



Subfam. 1. Physince 127 



1. Physa, Drapernaud 127 



1. coromandelica, Dunker. 128 



Class Pelecypoda 128 



Order TETRABRANCHIA . . 128 



^ 



Suborder 1. Mytilacea 128 



