4 SYKES : NOTE ON TWO VARIETIES OF ARION RUFUS, L. 



In addition to these more extensive works, Fischer has written 

 no less than three hundred and nine separate papers treating upon 

 all branches of the science of malacology, and as many as one 

 hundred in conjunction with Crosse, Bernardi, Bouvier, Dellesse, 

 Delfortrie, H. Fischer, de Folin, Gassies, Hupe and Tournier. 

 Very many of these memoirs are of the highest importance, and 

 have thrown much light upon the general classification of the 

 Mollusca. Fischer was a clever anatomist, and many of his most 

 valuable treatises are those devoted to the anatomy of hitherto 

 unknown molluscs. 



Notwithstanding the very large number of his papers and their 

 importance, there is little doubt but that at present he is most 

 widely known as the author of the " Manuel de Conchyliologie 

 et de Paleontologie Conchyliologique," published in 1880-7. It 

 is indispensable to every worker in the science of which it treats, 

 and, although not perfect in every respect, as a work of general 

 reference it was, at the time of its publication, and even now 

 stands, facile princeps. 



With regard to Fischer's personal qualities we can say nothing 

 from our own experience, but we can state on the evidence of 

 others who have had the advantage of his personal friendship, 

 that he was of a genial and sympathetic nature. He was ever 

 ready to help, and, judging from his writings, was not prone to 

 be severe in his criticisms on the work of others. He was 

 a member of several learned societies at home and abroad, was 

 elected President of the Zoological and Geological Societies of 

 France, and last year honoured us by becoming a member of the 

 Malacological Society of London. 



NOTE ON TWO VARIETIES OF ARION RUFUS, L. 



By E. R. SYKES, B.A., F.Z.S., 



London. 



Mr. Cockerell has in his "Check-List of the Slugs" recorded 

 a variety lamarckii, Kal., 1 of Avion rufi/s, L. (No. 367b), and in 

 a note on this (p. 207) he says, "Gray (Cat. Pulm. B.M., 1885, 

 p. 54) quotes Limax ruber, Urap. I cannot now consult 



1 Conchologist, 1893, vol. ii., p. 190. 



