PRE FAC E 



The present Handbook is the result of the study by Messrs. 

 J. Cosmo Melvill and R. Standen, of collections of Marine 

 Mollusca given to the Museum by different Friends and Collectors. 

 The shells from Madras were obtained by Professor J- R- Henderson : 

 those from the Falkland Islands by Miss Cobb and Mrs. Blake ; 

 whilst a number were contributed by Professor D'Arcy Thompson. 



They have been reprinted from the ninth volume of the ' Journal 

 of Conchology,' in the hope that they may prove useful to those who 

 study the collections of mollusca in the Manchester Museum. The 

 original pagination has been retained throughout. 



William E. Hoyle, 



Keeper of the Musewir. 



