92 JOURNAL OF CONCHOLOGY, VOL. II, NO. 3, JULY, I904. 



occidentalis ; also a good selection of fossil forms from the Manchester Museum 

 collection. The principal exhibitors were Dr. R. F. Scharff, Messrs. R. Standen, 

 and J. W. Jackson, and the "Darbishire Collection," which contains a fine series of 

 British and Mediterranean locality sets, was also shewn. Mr. Standen gave a sketch 

 of the life-history, habitats, and general distribution of the recent species, so far as 

 is known, and drew particular attention to the influence of locality upon the varia- 

 tion in form so strikingly shewn in the large series of A. pes-pelecani exhibited. 



331st Meeting, May nth, 1904. 



Mr. Edward Collier (Vice-President) in the chair. 



Donations to the Library announced and thanks voted •; 

 The usual periodicals received in exchange. 



New Members Elected. 



The Rev. Chas. Chichester, Shirwell Rectory, Barnstaple. 

 Frederic Henry Gravely, Dalton Hall, Victoria Park, Manchester. 

 Russell Currie Harrison, 7, Foulser Road, Upper Tooting, London, S.W. 



Names Struck Off the List. 



The following names have been struck off the List in terms of Rule 4 : 

 H. K. Jordan, G. E. Mason, R. D. Sykes. 



Papers Read. 



" The Cyprxida; of the Persian Gulf, Gulf of Oman, and North Arabian Sea, as 

 exhibited in F. W. Townsend's Collections, 1893-1904," by J. Cosmo Melvill and 

 R. Standen. 



'■'■ Rostellaria delicatiila : Notes on its Distribution and Limits of Variation," by 

 J. Cosmo Melvill and R. Standen. 



''' Helix poinatia m. sinistrorsum in Surrey," by F. B. Jennings. 



Exhibits. 



By Mr. J. M. Williams : A number of rare and choice varieties of Cypi\ta, 

 including C. picta with blue base; C. erosa with dorsal surface ashy blue and base 

 white; C. tabescens var. fellucida', C. caiirica var. obscura; and a dark variety of 

 C. crrones from New Caledonia ; C. brevidentata ; very fine typical C. pulchella ; 

 and a small pale variety of C. caput-serpentis. 



By Mr. R. Cairns: Many fine specimens of Cypiiea, including the new variety 

 of C. caiirka described in Messrs. Melvill and Standen's paper; C. erosa var. 

 nebrites ; and varietal forms of C. ziczac. 



By Mr. R. Standen : A remarkable form of Cyprira talpa in which the rich 

 black basal coating of enamel spreads halfway up the side of the shell, and terminates 

 in rows of spots and fleckings of rich brown. 



By the Rev. L. J. Shackleford: Cyp7-aa lurida from St. Helena; Helix aspersa 

 picked up on the beach at St. Vincent, Cape Verde Islands, and tenanted by 

 hermit crabs. 



By Mr. A. J. Jukes-Brown and the Rev. L. J. Shackleford: Unio nyassaensis 

 and varieties, Spatha alata Lea, Palitdina robcrisoiii Frfld. , PJiysa ?tyassaiia, Melatiia 

 tuberculala, Mel. adniirabilis, Lanistes nyassana Dhrn. , L. solidus Smith, and L. 

 affinis Smith — all from Lake Nyassa, Central Africa, and collected last year by Mr. 

 Philip Young. 



