152 SUPPLEMENT. 



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

 depress®, Sicily (Pirajno). V. antiqua lives in Jutland and 

 Sweden. 



P. 74. — Y. cristata. F. Monte Mario (Bigacci). E. 

 Sicily (Pirajno). 



P. 76, 1. 5 from bottom, before " Melampus " insert " Assi- 

 minea." 



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

 (Gerstfeldt); Friuli (Pirona). 



P. 81. — P. nitidus. In Miiller'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. fontanel 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. imbricatus, Miiller. 



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

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

 Bourguignat. Middendorff considers this species identical 

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

 Schroter and Draparnaud. 



P. 85. — P. glaber. E. Greenland (Moller, as P. arcticus); 

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



P. 89. — P. carinatus. E, Amoorland (Gerstfeldt) ; Epirus 

 (Mousson). 



P. 91. — P. complanattjs. F. Forest Bed (A. Bell). Var. 

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

 (Barbie and others). 



P. 96. — Physa hypnortjm. 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. Yar. curta=Planorbis gelatinus, Mull. 



P. 102.- — LiMNiEA glutinosa. E. Lapland — Beyrout. 



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

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

 the mantle expanded over the shell." 



