48 



Mere records of 'Sagitta' or of 'Chaetognatha', and, generally speaking, cases where 

 the author expresses himself as doubtful of the Identification, have been omitted. 



Where the ver}' numerous hauls of the Conseil International ') He within the admitted 

 area of a species, they have not been reprinted in detail, but a reference to the number of 

 their Bulletin will be found. 



The Record of Distribution is thus an attempt to reduce the scattered data to a common 

 denominator, in such a way that a naturalist dealing with a particular species may readily 

 discover what information is available about it. No one realises better than the present writer 

 that, in the compilation of such a record, errors of omission and of commission, of copying 

 and of calculating, are sure to occur; he will be grateful if such are brought to his notice, 

 and will take an opportunity to publish such corrections. 



In the case of the better-known species, the more important coUections have been put 

 first under the name of the recorder ; these are foliowed by more isolated records under the 

 positions or localities (classified, when numerous). It seemed that more would be lost than 

 gained by breaking up big collections under geographical headings. 



l) Conseil permanent international pour rexploration de la mer. 



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