ERRATA. 



The artist bas inadvertently neglected to transpose 

 the following diagrams, therefore they should be viewed 

 through a mirror for each to appear correct: — Figures 

 12, from 14 to 21, 31 to 44, 48 and 49. 



Pagtj 4, line 19, page 5, line 4, for Limneus read 

 Limnoeus. 



Page 5, lines 6 and 13, page 38, line 13, for Planorbis 

 cornea read Planorbis corneus. 



Page 5. line 6, for Helix lucida read Zonites lucidus. 

 Page 10, lines 11 and 12, page 12, line 25, page 16, 

 line 12, page 62, line 10, page 63, line 30, page 82, line 

 3, for Millet read Millett. 



Page 10, line 13, for Kendall read Kendal' 

 Page 19, 3rd line from bottom, for us read me. 

 Page 23, line 8, for inches read 3 inches. 

 Page 27, line 27, for fron read front. 

 Page 31, line 23, for does read do. 

 Page 33, last line, for he read the. 

 Page 34, line 21, for calcereus read calcareous. 

 Page 35, line 2 from bottom, for Pabidince read 

 Paludina. 



Page 49, line 31, for band read bands. 

 Page 51, line 10, for representation read representative. 

 Page 53, line 2\ for the conchologist read this conchdlo- 

 gist. 



Page 65, bottom line but one, ior Helix cellaria read 

 Zonites cellarius. 



Page 30, bottom line but one, page 53, line 4, page 

 75, line 17, page f^G, line 16, page 88, line 5, for Chate- 

 reaux read Chautereaux. 



Page 56, line 6, for Bauchard read Bouchard. 

 Page 113, line 5, Clausilia plicatula is the Clausilia 

 Rolphii of Grey, it is accidentally inserted in line 6 

 with Clausilia biplicata. 



B. SUTTON, PRINTER, NOTTINGHAM. 



\,; <.:■'*' 



