210 



Index. 



Planorbis Villao Adami 



Villai Adami 



— villosus Poiret 



vireDS Ad. . . 



viridis Spix . . 



vortex Linn6 2, 6, 69, 81, 



87 ; — var. B. Draparna ■ 



ud 88 ;^var. compres- 



51W Michaud 



vortex Morclet 



vorticosus Locard 



vnrHcnlm Trosohol 83 ; 



— var havaricus Westerl. 



84 ;^var. charteus Held 

 Wheatleyi Lea 



Page. 

 89 

 89 



99 

 134 



46 



82 

 90 



83 

 181 



' — ' — xerampelinns Drouet 43, 44, 47 



zebrinus Hani, et Theob. 27 



— ^— zonatus Diinker . . 27 



PLANORBULA .. ..179 



Planorbula iEgyi>tiaca Bourg. . . 1 83 



Planorhtila nlexandrinen-ns Elirenb. 182 



Phcnorhuln winiijem Say . . 180 



Planorhiila Borcnnh FnWon. .. 1S2 



Planorbula calliodon Bourg. .. 183 



Planorbnia calliodus Bourg. . . 1 82 



Planorbula calvertiana Letourn. .. 183 



Planorbula Chambardiana Lelourn. 183 



Planorbula Chauliodon Bourg. . . 1 83 



Planorbula Chauliodus Bourg. . . 183 



Plmwrhiila ChryHii Dall . . 181 



Planorbula Cleopatrae Letourn. . . 183 



Planorbula crassilabrura Br. Walk. 181 



Planorbula declivis Ta.te .. 180 



Planorbula diodonta Letoum. . . 183 

 Planorbula Jickelii Bourg. 182, 183 

 Planorbula Letourneuxi Bourg. 1S2, 183 



Planorbula microstoma Bourg. . . 183 



Planorbula odonto.stoma Bouig. .. 182 



Planorbula Tanousi Letourn. . . 183 



Pin iiorhnl'i Ichadiensis Germnm .. 183 



Planorbula Wlieatlevi Lea .. 179 



POLYGYRA ■ .. .. 96 



POLYOYRUS . . . . 96 



POLYPYLIS. . . . . . 164 



POMPIJOLYX .. 185. 191 



Pompholyx efjusa Lea, 185. 187 ; — 



var. solida Npv. . . 186 

 Pomphoh/x Leana Ad. 187: — var. 



solida Ball ; . . 187 



Pompholyx solida Ball 



185, 188 



S 



SEOMENTINA 

 Scgmentina alexandrina .lick. 

 Segraentina arraigora Adams 

 Segmcntina calnllia Benson 166, 



Page. 



iri9. 



168, 



172, 



Scgmentina Canlori Benson 



Segmentina Chrystii Call 



Segmentina C'lessini West. 



Segmentina coenom Benson 



Segmentina emiean" Melv. et Pons. 



Scgmentina foutana Beck 



Segmentina hemisphaerula Bens. 169, 172 



Segmentina lacustris Swains. . . 16.t 



Segraentina Largillierti Dunk. 164. 170, 172 



163 



182 

 180 

 171, 

 174 



173. 174 

 181 

 166 



173. 174 

 168 

 160 



164. 



Segmentina Uneata Fie 

 iSegmontina nitida Flem. 

 Segmentina nitida Midler I 



Segmentina papyracea Benson 

 Segmentina planodisca Melv. et Pon 



sonby 

 Segmentina sindien Benson 

 Segmentina Swinlioei Adams 

 Segmentina trochoirleu Benson 

 Segmentina umbilicalis Benson, 176 



et sq., — var major 

 Segmentina Wheatleyi Br. Walk. 

 Spinifoemis 



SpntALiNA .. 68, 69^ 



Spikodiscus 

 Spikorbis Daudin 

 Spikoebis Swainson . . 

 SULClFETt 



164 

 164 

 167 

 178 



167 

 175 



164. 171 

 175 



T A PHI US 



TORQVIS.. 



Teochlea 



TBOPICOPBIS 



TROPlDISrVS 



Tropidisccs Fischer et Crosse 



Turbo nautiknis T,inn<'' 



VOKTEX 



VORTICIFEX j 



178 



181 



1.53 



84 



9 



87 



87 



191 



7,62 

 8.149 



98 

 7,91 

 7.68 



81 

 155 



1 



188 



CALCUTT.^ : PRINTED BY SUPDT. GOVT. PKINTTNG, INDIA, 8, UARTINGS STREET. 



