JOURNAL OF CONCHOLOGY. 209 



shire, A. ater, A. Bourguignati, Limax tfiaxifnus, L. ai-boriiin, 

 &c., collected by Mr. T. Ruddy, and specimens of Arion Bour- 

 guignati from Mr. G. S. Tye, Handsworth, were shown. 



The President exhibited Helix rotutidata, Zonites excavatus 

 and Z. alliarius alive from Bramley Fall, near Leeds ; and on 

 behalf of Mr. T. Scott, a collection of species of shells mainly 

 collected from the shores of Loch Fad, Bute, a locality which 

 has been reported as nearly destitute of molluscan life ; also for 

 Mr. Chas Ashford, examples of Amalia gagates from Christ- 

 church, Hants. 



Mr. C. H. Pierson showed Unio tumidus and Anodonta 

 cygnea from the mud heaps on the banks of the Leeds and 

 Liverpool Canal at Kirkstall, and A. cygnea and var. rostra ta 

 from Roundhay Park, Leeds. 



ADDITIONAL NOTE ON THE GENUS CUMA. 



By WILLIAM E. HOYLE, M.A. 



In the April number of this Journal, the Rev. A. H. 

 Cooke published a valuable paper in which he discussed the 

 various species of the genus Cunia. The object of the present 

 note is not to criticise any of his statements, but to show what 

 follows as a further consequence of their acceptance. It appears 

 from Mr. Cooke's investigations that Humphrey [1797] cannot 

 be regarded as the creator of the genus, but that this distinction 

 belongs to Swainson [1840]. Between these two dates, how- 

 ever, the name was given to a Crustacean by Milne-Edwards 

 [Ann. Sci. Nat., xiii., 1838] and this application obviously 

 has priority over that of Swainson. It is therefore Mr. Cooke's 

 right to complete his revision by giving a new name to the 

 group, and if he would at the same time give within the limits 

 of a page a brief formal diagnosis of the genus and of the 

 sufficiently characterised species with synonyms he would con- 

 fer an additional boon on conchologists. 



