226 JOURNAL Of CONCMOLOGY, VOL. I5, NO. 7, AUGUST 15, I917. 



Papers Read. 



" Paludestrina jenkinsi Smith in Bucks.," by J. E. Cooper. 

 " Hibernation oi Succitiea elegans Risso," by N. G. Hadden. 

 " Testacella viaugei var. viridans Morelet at Porlocli Weir," by N. G. Hadden. 

 " Note upon Conns melvilli Sowerby," by J. C. Melvill. 



"Researches into the Hereditary Characters of some of our British Mollusca ; 

 part 2 ; Helix aspersa Miill. and H. neinoralis L.," by A. W. Stelfox. ' 



Exhibits i 



Were made by Messrs. Collier, Stelfox, Spence, Moore, Mrs. Gill, and the 

 Manchester Museum. 



Notes on some North Devon Mollusca. — The following species and 

 varieties of non-marine shells were obtained in July and August of the year 1915, 

 and do not appear to have been recorded for their respective localities hitherto. 

 Vitrea cellaria (Miill) var. albina Moq.-Tan. Fairly plentiful in the woods on the 

 banks of the East Lyn river near Lyn mouth. The type is abundant here, and 

 attains a large size, but careful examination of a number of living examples failed 

 to reveal var. lucida (Drap. ) in the district. Zonitoides excavatus (Bean). A single 

 specimen of the type form was obtained near Coombe Park Gate, and three more 

 in the wettest part of Lee Woods, Lynton. Helicella caperata (Mont.) var. ornata 

 Pic. Valley of the Rocks, Lynton. The type occurred in abundance on the top 

 of a wall at Lee Bay. Hygroinia fnsca (Mont.) Woody Bay woods, not common. 

 Vallonia excentrica Sterki. One example under a stone in a field near Sixacre 

 Farm, Lynton. The only Vallonia obtained. Helix aspersa Miill. m. subscalari- 

 fo7-tne. One on a foxglove plant near Lynton. Although abundant in the district, 

 the species showed little variation in colouration or banding. Helix neinoralis L. 

 var. jascialba Pic. A large proportinn of the shells were of this variety; a particu- 

 larly fine colony on the roadside bank between Lynton and Woody Bay. Clausilia 

 laminata (Mont.) var. albina Moq.-Tan. One specimen with the type in woods 

 on bank of the East Lyn near Lynmouth. Ancylus Jliiviatilis Miill., var. albida 

 Jeff. Very fine specimens in the upper reaches of the East Lyn river. Limncea 

 pereger (Miill.) var. boissyi Dupuy. Associated with the last species in the East Lyn 

 river below Brendon. L. pereger (Miill.) var. lacustrina Stud. Plentiful in a 

 swift-flowing stream at Leemouth, near Lynton. L. pereger {WaW.) var. conglobata 

 Log. Plentiful in a very shallow pool among the sand dunes at Braunton Burrows. 

 The animal was very remarkable for the orange colouring of the foot. L. pereger 

 (Mull.) var. excerpta Htm. Braunton Burrows, with the last form. L. pereger 

 (Miill.) var. ovata Drap. Braunton Burrows with the last two forms. I am 

 greatly indebted to Mr. J. W. Taylor for kindly naming the above varieties of 

 L. pereger for me. I was pleased to find Helicigona lapicida var. albina Menke 

 fairly plentiful on a wall in the Valley of the Rocks, along with the type and var. 

 subpellucida Baudon. In all the woods Liinax arbornm Bouch. -Chant, and Vitrea 

 alliaria (Mill.) were extremely abundant. Agrioliviax hcvis (Miill.) was fairly 

 common in wet parts of the woods. The only species to be found in streams on 

 Exmoor was Ancylus Jluviatilis Miill., the district being very unsuitable for fresh- 

 water mollusca. A very large form oi Li/nnaa truncatnla (Miill.) inhabits the wet 

 rocks at Wringclifif Bay near Lynton, very little above high-tide line. They must 

 be frequently washed by the spray from the waves. — Nokman G. Hadden {Read 

 before the Society^ Nov. loth, 1915). 



