320 JOURNAL OF CONCHOLOGV, VOL. 12, NO. II, JULY, I909. 



(R. I). Darbishiie collection) was also exhibited by Mr. Standen, and a number of 

 s]iecies from Lake Nyassa, the Albert Xyanza, and Congo River for comparison. 



382nd Meeting, May I2th, 1909. 



Lt.-Col. H. H. Godwin-Austen, F. R.S., in the chair. 



The Librarian reported the usual periodicals received in exchange. 



Donations to Cabinet announced and thanks voted : 



By Mr. F. H. Sikes: Sphierium laciistre, Pisidiuni ohtusale, Aivoloxiis lacustris 

 from Warlileton, E. Sussex, and P/aiiorbis caj-inaius from Shoreham, W. Sussex. 



By Mr. J. N. Milne: Sixty-four "voucher sets" of non-marine shells from cos. 

 Down, Antrim and Donegal. 



Resignation. 



H. A. Soames. 



New Members Proposed. 



J. \V. Milton, Harrison House, Crosby. 



Robert Cecil Dickson, Dalhousie \'illa, Carnoustie, N.B. 

 Papers Read. 



" Note on Trivia costis-pnnctata Caskoin and its allies," by T- Cosmo MeU-ill, 

 M.A., F.L.S. 



" Caiychiiivi mini)]unn var. eloiv^atunt var. nov. from Chatburn," by J. W. 

 Baldwin. 



" Notes on Shropshire Mollusca," by J. Wilfrid Jackson, F.G. S. 



" Periodic variation in Liinnaa perege}- Miill.," by J. Davy Dean. 



"On the former occurrence of Unio {Margaritana) margaritifej- L. in the 

 River Thames," by J. Wilfrid Jackson. F.Ci.S. 



Exhibits. 



By Mr. J. Cosmo Melvill : The "type" specimen of 7rivia costis-pmiclata 

 Gaskoin, and a series of allied species to illustrate his note. 



By Mr. R. Standen : Trivia costis-pinictata. T. solandri, and T. radians : a 

 fine series of dredged specimens to illustrate Mr. Melvill's paper. 



By Mr. J. W. Baldwin : A series of numerous locality sets of Carychiiau mini- 

 mwn to illustrate his note. 



By Mr. J. Kidson Taylor : A very beautifully marked set of Pccten viaximus 

 showing great range of coloration and variation ; believed to come from the Irish 

 coast. 



By Mr. J. Wilfrid Jackson : A series of large fossil Unio inargaritifer dredged 

 from the Thames gravel at Mortlake, to illustrate paper by himself and Mr. A. S. 

 Kennard. 



By Mr. Fred Taylor : Testacella scutuhini, from Broadbottom. Cheshire, where 

 it has recently turned up in great numbers in an old garden. 



By Mr. R. Cairns : Opisthostoina 22 species, Opisthoporiis 4, Spiracitluin bed- 

 donei Blfd., and hispidiiin Pearson, RJiiostoina jousseaumei De Morgan, and 

 Fterocyclos 9 species. 



By Mr. Edward Collier : Piincttim pyg»i(?it?/i, Spliy radium edentulum, Pyra- 

 ffitditla rupesiris, P. roUtndata and vars. itotoni and alba, and m. sinistrorsimi, 

 P. rudera fa coUecitd at Arolla, Switz. , over 7,000 ft. Opeirulata : Opisthoporiis, 

 12 species ; Rhiostoma, 2 species ; Spiraailttm, 2 species; Pterocyclos, 17 species. 



