384 PROCEEDINGS OF THE CONCHOLOGICAL SOCIETY. 



rise to consicleral:)le discussion and comment. Mr. J. C. Melvill exhibited 

 and described a number of rare and beautiful shells, many of them being 

 newly-named species; amongst them was Helix retisculpta — the most beauti- 

 fully-sculptured land shell yet discovered, from Damaraland ; Tomigerus 

 turbinaltis and T. claiisiis, and Atiasioma ringens, A. carinatuvi, and A. 

 verreaicxiaitu?n, from Brazil ; Biilimtis adaj)isonii, from the Andes, with 

 MS. note in Hugh Cuming's handwriting; Cohunbai-hun distaphanotis 

 (prob. nov.), Palaina moteleti, P. quadra si, P. tuba, P. ariss, P. filocinctiim, 

 P. niacrosioma, P. grandisfinosa, and P. decrespignyi, from Borneo; Heli- 

 carion citinmgn and Ttochomorpha splendens, from Cebu, Philippines; Fttsus 

 pagoda, from China; and Pholadomya Candida, from Island Tortola, West 

 Indies; two specimens oi Helix aspersa monst. scalarifonne and one sinistral 

 specimen of same; and Flelix luEmastoma monst. sinistrorsum, unique at 

 present time. 



For the College Museum there was shown an important series of 

 Rissoidcv and PyratnidellidcE from British and European localities, localized 

 and named, and extremely valuable for reference; and a similar series of 

 Scalaria and Dentalium, all from the collection of Mr. J. H. Ponsonby. 



Mr. Darbishire exhibited a series of Ca7-diwn edule, from the plains and 

 terraces of the district of the Sea of Aral, and from Lake Marcotis and 

 Ramleh, Alexandria, from the collection of Mr. W. Bateson, M.A., of St. 

 John's College, Cambridge, illustrating that gentleman's paper in the 

 Philosophical Trans., R.S., 1889, on 'Some Variations of Cardiiim edtile 

 correlated to the Conditions of Life.' 



Also a series of the same species, from various coasts of Britain, France, 

 and the Mediterranean, showing variation, and especially forms of C. edule 

 var. rusticiim from brackish waters. 



Also a drawer of remarkably large British specimens of Unio tiiviidus 

 and U. pictonim, shewing curious approximations amongst the old shells of 

 the two species; four drawers of British Land and Freshwater Shells, col- 

 lected in 1865 — 68 by the late Mr. T. Peace, mostly from localities in the 

 neighbourhood of Manchester, now built upon or otherwise become barren; 

 and Loligo vulgaris (body 14 inches long, arms 15 inches), dredged in 

 October, 1890, on muddy ground off the Morecambe lightship. 



Mr. Thos. Rogers showed varieties of Helix aspersa, and a collection of 

 Marine Shells, from Port Jackson, Australia, including Ttigoiiia pectitiata, 

 and two valves of what appeared to be another species, and other rarities. 



Mr. Hey showed some fine L. stagnalis, with remarkably reflected lip, 

 from Derby. 



Mr. J. R. Hardy showed specimens of Newts, Dragon Fly Larva, 

 Nepa, and large Freshwater Beetles with Sphcerizcvi and Pisidiuvi attached 

 to their feet, showing how such shells might possibly be dispersed from one 

 pond to another. 



Mr. Edward Collier exhibited a grand series of Helix nemoralis and H. 



hortensis, from Topsham, South Devon, including reversed and scalariforme 



, specimens of ^. hortensis (both taken in same hedgerow); also H. virgata 



monst. scalariforme, from Dublin ; living and very fine Z, draparnaldi from 



J.C, vi., July, 1891. 



