Proceedings: may ii, 1898. g\ 



Papers Read. 



'' Note on a new variety of Testacella maugei Fer.," by W. E. Collinge. 



"Note on Clausilia ccerulea Fer., in Hants.," by L. E. Adams. 



"Note on Paludeslrina jenkinsi near Middlesbrough," by the Rev. A. Hann. 



Exhibits. 



Dr. R. F. Scharff sent for exhibition a series of very fine living examples of 

 Geomalacus maculosus recently collected by him at Glengariff, Co. Kerry. A 

 number of specimens in various stages of growth were also shown on behalf of Mr. 

 R. Welch, who had within the past few days collected this slug in quantity at 

 Kenmare, Co. Kerry, where it occurs on every wayside dyke to the south of the bay. 



By Mr. Thos. Edwards : Valvata piscinalis var. depressa, from Bradgate Park, 

 Leicester ; Anodonta cygnea var. incrassata, from a pond at Towerby Hall, near 

 Leicester ; a very fine example of fossil wood bored by Teredo antenautcc, and 

 showing tubes with shell valves in situ, from Thanet Sands, Pegwell Bay ; Hy- 

 drobia ulvce, from Pegwell Bay ; and specimens of Ostrea liassica attached to an 

 Ammonite and to stems of Extracrinus briaroides. In these specimens the curious 

 manner in which the impression of the object to which the shell is attached, is again 

 repeated on the upper valve is remarkably well illustrated. The specimens were 

 obtained within the borough of Leicester, and occurred in the Boulder Clay. 



By Mr. R. Standen : Chorus belcheri Hinds, from California ; and a fine series 

 of Trophon triangulatus Carp., in several stages of growth, from California; also 

 specimens of Teredina personata from London Clay, and Teredo antenautce, in situ, 

 and sections of same for comparison with Mr. T. Edwards' Thanet specimen — all 

 from the Manchester Museum collections. Also Unio margaritifera from the 

 Bundorragha River, Delphi, Co. Mayo, Ireland. 



By Mr. W. Moss : Hyalinia lucida, from Belfast, collected by Mr. Welch ; 

 H. glabra, from Whalley, collected by Mr. Wigglesworth ; and H. glabra, from 

 Highgate Woods, collected by Mr. J. E. Cooper. The first appears from an 

 examination of the genitalia to be identical with the Tenby forms of this species; the 

 radula of one specimen is peculiar, the elongated cutting point on the mesocone 

 of the first lateral tooth en each side the central is absent, and this abnormality is 

 continued the whole length of the radula ; a few of the entocones are also bifid, a 

 characteristic often met with in this species. The last are rather different in 

 color from some of the Northern forms ; the radula is very variable, particularly in 

 the form of the central tooth ; out of 12 specimens examined, three show most 

 remarkable divergence from typical forms, two of these being different from the 

 third ; another radula is abnormal in the first lateral tooth on one side only of the 

 central, this tooth lacking the entocone for the whole length of the radula. 



By Mr. R Cairns : Some varieties and choice specimens of Cyprcea testudinaria, 

 C. physis, C. stolida, C. pyriformis, C. margarita, C. undata, and others. 



Hyalinia cellaria in Walworth. — The other day a drain in my area being 

 blocked, I found it necessary to open the ground in the forecourt, and in so doing 

 found an unsuspected man-hole covered with slabs of stone. When these were 

 lifted I found four fine specimens of H. cellaria on the under surface of the stone, 

 where they must have lived always in the dark and exclusively on what a scullery 

 pipe brought down. Walworth is in the densest part of South London, where we 

 live 200 to the acre, and expect to find shells as little as ferns. — J. W. Horsley, 

 St. Peter's Rectory, Walworth, S.E. {Read before the Society, April 13th, 1898). 



