56 



PROCEEDINGS OF THE CONCHOLOGICAL SOCIETY. 



V. diaphana Parr. 

 V. ^\ct.a.Jeff. 

 V. Candida Porro. 

 V. lineata Bean, 

 V. labiosayt;^ 

 m. sinistrorsumyis^ 

 m. scalariformey^. 

 ni. decollatumy^. 



Limnsea auricularia (Z.). 

 V. z.c\iLis. Jeff'. 

 V. ampla (i^rtr/w.). 

 V. reflexa Nelson. 

 V. magna Colb. 

 V. minor Aloq. 

 V. albiday^ 



Liinnophysa Fitzinger. 

 Limna3a stagnalis (Z.). 

 V. fragilis [L.). 

 V. bottnica Clessin. 

 V. lacustris Stiider. 

 V. labiatay?^. 

 V. variegata Hazay. 

 V. albiday^ 

 m. sinisUorsmn yi^. 



Limnrea palustris [Mull.). 

 V. corva [Gniel.). 

 V. obesa Taylor. 

 V. elongata Moq. 

 V. corner. Jeff. 

 V. minor Taylor. 

 V. tinctay?^. 

 V. lacunosa Z^/. 

 V. fasciata Nelson. 

 V. roseolabiatay?^ 

 V. albida Nelson. 

 m. decollatmiiy?^. 



Limnffia truncatula (Jl/iill.). 



V. ventricosa yl/tY- 



V. elegansy?^. 



V. microstoma Drouet. 



V. major Moq. 



V. minor y)/^;/. 



V. albida y?^ 



m. scalariformeys^ 



Omphiscola Beck. 

 Limnrea glabra [Mull.). 



V. elongataye^. 



V. major Gassies. 



m. decoUatum Nelson. 



Sub-family ANCYLIN^E. 

 Genus ANCYLUS Geoffroy. 



Ancylus fluviatilis Mull. 

 V. capuloidesyaw. 



V gibbosa Bourg. 

 V. stricta Morel. 

 V. albiday?^. 



Genus VELLETIA Gray. 

 Velletia lacustris (Z.). 

 V. compressa [Jeff.). 

 V. moquiniana (^oi<;'^. )• 

 V. albida (y#). 



Order OPERCULATA. 



Sub-order PULMONATA. 



Family CYCLOSTOMID/E. 



Genus CYCLOSTOMA Montf. 



Cyclostoma elegans [Mull.). 

 V. marmorea Brown. 

 V. albescens Pes Moulins. 

 V. ochroleuca Aloq. 

 V. fasciata Picard. 



Family ACICULID.E:. 

 Genus ACICULA Hartmann. 

 Acicula lineata (^Drap.'). 

 V. alba(y#). 

 m. sinistrorsum [Jeff.). 



SUB-OR. PECTINIBRANCHIATA. 

 Family NERITID-E. 

 Genus NERITINA Lam. 

 Neritina fluviatilis (Z.). 

 V. cerina Colb. 

 V. trifasciata Colb. 

 V. undulata C(7/^. 

 V. nigrescens Colb. 



Family PALUDINID.E. 

 Genus VIVIPARUS Montf. 

 Viviparus contectus {Millet'). 



V. virescens [Jeff.). 

 Viviparus viviparus (Z.). 

 V. albida (TV/; &- 7\). 

 V. efasciata {Pickering). 



( = v. unicolor t/e//'/'.). 

 V. atro-purpurea {Lloyd). 



Genus BYTHINIA Gray. 

 Bythinia tentaculata (Z. ). 



V. producta Menke. 



V, ventricosa Menke. 



V. excavatay^^. 



V. albida Rimmer. 



m. decollatumy^^ 

 Bythinia leachii {Shepp.). 



v. elongata y^^. 



V. albida Rimmer. 



J.C, vii., April, 1892. 



