346 JOURNAL OF CONCHOI.OGY, VOL. I4, NO. II, JULY, I9I5. 



Tiirridcc is derived. The genera in this family are difficult and 

 probably alterations will here be made. I have indicated that Lora 

 Gistel is equivalent and anterior to ClathnreUa Carpenter. 



Genus Bullinella Newton. 



Cylichnella Gabb has been used as anterior to this, but probably 

 other names antedate this. 



The preceding very rough notes are sufficient to call for re- 

 vision of the List, when probably many other necessary alterations 

 will be brought to light. 



It is more than probable that many specific emendations are 

 also necessary and if progress in Marine Mollusca has kept pace 

 with that made in the Land Molluscs, as shewn in Kennard and 

 Woodward's List of Non-Marine Molluscs, numerous additions must 

 be made. Li ten years the Land Molluscs have advanced in 

 number from 170 to 210, so that fourteen years should show a 

 numerical increase in Marine Molluscs also. 



I would emphasize the fact that it is more than probable that 

 careful study would show that many of the names hitherto in use 

 have no right, as well as Monodonta^ Natica and Nassa. 



Having collected typical shells of tliese three, I was very sur- 

 prised when I found that British shells which I collected, showing 

 very little of the characters I knew, were referred to these genera, 

 and this tact instigated this medley. 



Additions to the Land and Freshwater Mollusca of Wigtownshire.- 



To help in the work on the acceleration of the Census I made arrangements to pay 

 a visit to the western portion of Wigtownshire, the whole county record at the time 

 being 17 species. The following additions to the list resulted: — Avion aier (L.) 

 var. caslanea, frequent at Stranraer in juvenile stage. Arion inlerinediiis Norm., 

 under old limber, Port Patrick. Arion inteniiedius var. gn'sea Roebuck, road- 

 sides around Stranraer, frequent under stones. Arion sitb/iisciC5\T)xA]i.), numerous 

 and fine under stones, Stranraer. Milax gagates (Drap. ) var. rava Williams, 

 frequent under old timber. Port Patrick. Hyalinia radiatula (Alder), scarce, 

 Dunskey Wood, Zonitoidcs excavaius var. vitrina P^er. , common under roadside 

 rubbish, Stranraer. Zonitoidcs nitidiis (INliill.), scarce, Dunskey Wood. Helix 

 aspersa Miill., a few in the Battery, Port Patrick. Hygroinia rtifcscens Auctt. , 

 scarce, Stranraer, on nettles. Hygroinia hispida (L. ), frequent, the Battery, Port 

 Patrick. Helicella caperata (jNIont.), frequent, the Battery, Port Patrick. Acan- 

 thintda acukata (Miill.), rare, one, Dunskey Wood. Cochlicopa lubrica (Mlill.), 

 numerous round Stranraer, Carychiwn ininiiniini Miill., apparently rare, one, 

 Dunskey Wood. Clausilia bidentata (Strom), much the commonest shell in the 

 district. Pupa cylindracea (DaC ), plentiful under stones, Dunskey Wood, 

 Ancyltts fluviatilis Mlill,, numerous under stones in burn by roadside, Port Patricic 

 to Stranraer. — J. F. iNIusilAlM ^^Read before the Society^ January 13th, 1915). 



