152 SUPPLEMENT. 



P. 72. — Valvata piscinalis. E. Epirus (Mousson). Yar. 

 depressa. Sicily (Pirajno). V. antiqua lives in Jutland and 

 Sweden. 



P. 74. — V. CEiSTATA. F. Monte Mario (Rigacci). E. 

 Sicily (Pirajno). 



P. 76, 1. 5 from bottom, before "if^Zampws" insert ^^ Assi- 

 minea." 



P. 79. — Planorbis lineatus. E. Siberia and Amoorland 

 (Gerstfeldt); Eriuli (Pirona). 



P. 81. — P. NiTiDUS. In Muller's own collection at Copen- 

 hagen specimens of this and the last species are intermixed, 

 and are named in his handwriting " P. nitidus." I am now 

 inclined to consider this 'the Helix complanata of Linne ; but 

 it may be more convenient to continue the error than to make 

 so many resulting changes. It is the H.fontana of Lightfoot. 

 P. riparius of Westerlund is a small variety. 



P. 82. — P. NATJTILEUS. E. Sicily (Pirajno). Nautilus 

 crista, Linne (Syst. Nat. ed. 10), and P. imhricatus, Miiller. 



P. 83. — P. ALBUS, var. Draparnaldi. Birmingham (Nelson). 

 E. Sweden (Westerlund, as a distinct species). P. Crosseanus 

 Bourguiguat. Middendorif considers this species identical 

 with P. hirsutus of Gould from North America. P. hispidus, 

 Schroter and Draparnaud. 



P. 85. — P. GLABEE. E. Greenland (MoUer, as P. arcticus); 

 and probably Siberia (Dunker, as P. sibiricus). 



P. 89. — P. CARiNATXJs. E. Amoorland (Gerstfeldt); Epirus 

 (Mousson) . 



P. 91.— P. coMPLANATus. F. Forcst Bed (A. Bell). Var. 

 alhina. Clevedon (Miss Jellie). E. N.E. and N.W. France 

 (Barbie and others). 



P. 96. — Physa hypnorum. E. Pisa (Gentiluomo). Pierces 

 the shells of other individuals, and feeds on them (Dixon). 



P. 98. — P. FONTiNALis. E. Amoorland to Madeira and the 

 Canaries. Yai. cnrta=Planorbis gelatirius, Miill. 



P. 102. — LiMN^A GLUTiNOSA. E. Lapland — Beyrout. 



P. 103.— L. iNvoLUTA. Dr. W. Hill Evans (* Naturalist,' 

 Nov. 1864) says that he " never could discover any portion of 

 the mantle expanded over the shell." 



