274 JOURNAL OF CONCHOLOGY, VOL. l6, NO. 8, JANUARY, I922. 



Yorkshire S.W. : — Pseudanodotita sp. (Wakefield and Barnsley Canal, Agbrigg, 



J. D. Firth). 

 Edinburgh : — Limncca stagnalis (Duddingston Loch, ? native, E. Crapper). 

 Perth East : — Paludestrina ienkinsi (brackish and fresh water, E. Crapper and 



H. Coates). 



The records for Clausilia cravenensis in Northants (Weekly Hall Wood, 

 Kettering, 1897) and for Tkeha cantiana in Channel Isles (Jersey, about 1850), 

 are very doubtful and should be suspended until confirmed. Records for Physa 

 acuta require re-examination, and it is desirable that fresh specimens should be 

 submitted for authentication utith the animal. 



Authenticated records of the occurence of Azeca t}-idens in Perth South were 

 overlooked in compiling the census ; the species should be added to the list for 

 v.c. 87 and the statement on p. 174 amended. 



ANNUAL REPORT OF THE LEEDS BRANCH. 



Nine meetings have been held during the year. The three summer rambles were 

 most unproductive owing to the arid conditions. The six winter meetings, as in 

 the past, were well attended, and the exhibits many and varied. A paper was 

 given by Mr. J. F. Musham on the breeding of Limnira glabra in confinement. 

 The Secretary gave a report on the oecological investigations carried out in a pre- 

 scribed length of the Leeds and Liverpool Canal between Calverley and Rodley. 



Three special exhibits were displayed, viz. , Limnjeidre, British marine univalves, 

 and British marine bivalves. 



Mr. A. Thornes is our President. F. Booth, Hot?. Sec. 



ANNUAL REPORT OF THE LONDON BRANCH. 



Eleven evening meetings and one in the field were held during the year. The 

 meetings were fairly well attended, and the exhibits of both British and foreign 

 species were good. The President, Mr. A. S. Kennard, continued his Notes on 

 British Land and Freshwater Species, and also exhibited and explained several 

 works on moUusca by the early British conchologists. At the meeting in June 

 Capt. Cyril Diver read a most interesting paper on the "Mating and Breeding of 

 Helix nenioralis and H. hortensis,'" giving his observations on the methods of 

 courtship and coition. J. C. Dacie, Hun. Sec. 



ANNUAL REPORT OF THE NORTH STAFFORDSHIRE 

 BRANCH. 



Although it has not been possible to convene official meetings and excursions 

 during the past year, members have worked individually or in pairs, and the fol- 

 lowing records are worth noting : — Sphcerizitu pallidum : taken in the Froghall 

 Canal, near Cheadle, by Messrs. J. and W. Hill, after being apparently absent for 

 many years. Testacella haliotidea : — two taken near Longton, where this species 

 is permanently established (B. Bryan). An addition to our knowledge of the 

 mollusca of the district is the paper by Mr. W. E. Alkins on "Some Recent 

 Records of Mollusca in the Churnet Valley and North-East Staffordshire," read 

 before the North Staffordshire Field Club and printed in the Club's Current Trans- 

 actions, vol. Iv, pp. 88 — 105. This paper contains a special study by the writer, 



