WOODWARD: LIST OF BRITISH NON-MARINE MOLLUSCA. 357 



nized in it the form known as Amalia sowerhyi of Fdrussac ; while it 

 could be equally applicable to Amalia gagates judging by some figures. 

 Since, therefore, it is not possible to say definitely what Miiller did 

 mean to describe, it is better to pass his name by and take that earliest 

 one concerning which there is no question. 



Mtlax, Gray,^ has precedence by some months of Moquin-Tandon's 

 Amalia, which appeared in the systematic portion of his classic work 

 dated 1855 but issued 1856.^ 



Vitrea Fitz.— Mr. E. A. Smith in his presidential address^ shows 

 clearly we have no choice but to accept this name. 



As to " V. glabra", everyone knows that Jeffreys was misled as to its 

 identification, nor can our species be identified with the V. helvetica 

 Blum. Under the circumstances it appeared better to give this British 

 form a name even if it were subsequently proved to be a synonym. 

 Less mischief will be done to science (especially in the compilation 

 of tables of geographical distribution) than by continuing to confound 

 it with some other species to which it does not belong, hence in a 

 separate paper I have called it V. rogersi in honour of its finder.'* 



V. hammonis Strom, has by some been identified as V. radiatula. 

 I am unable to follow this, both the description and figure are far too 

 vague and might fit one of many species of Vitrea. Mr. A. C. Johan- 

 sen, of Copenhagen, and Professor Dall agree with me on this point. 



Conulus being preoccupied both for MoUusca and Echinodermata, 

 Euconulus which predates Arnouldia Bourg. must be accepted. 



Arionidce. — Only those forms are retained as varieties that having 

 some anatomical difference have by some been reckoned species, and 

 A. ater var. bicolor which is a striking var. ; but one feels some com- 

 punction even about this. 



Endodoniidce and Helicidce. — Pilsbry's nomenclature'^ is here followed 

 as being the best and most reliable. 



Helix virgata DaC. — Some have questioned whether DaCosta meant 

 H. pisana, but a glance at his localities shows this to be impossible. 



Helix itala Linn. — This being one of the few shells in the Linnean 

 collection bearing in Linne's own hand the number referring to the 

 loth ed. of his "Systema" there can be no possible shadow of a doubt 

 as to its identity. This has been confirmed on personal inspection by 

 Mr. E. A. Smith, Mr. Newton, Mr. Kennard, myself and others. 



Helix sericea Drap. disappeared from British lists because that 

 species proved not to be a British form. Hygro7nia granulata Alder 

 therefore stands. 



1 " Cat. Pulmon.," pt. I., 1855. 



2 Proc. Malac. Sac, vol. 5, p. 261. 



3 /. Conch., vol. 6, p. 339. 



4 /. Conch., vol. 10, p. 309. 



5 " Man. Conch.," ser. ii. 



