l62 JOURNAL OF CONCHOLOGY, VOL. I4, NO, 6, APRIL, I914. 



Mr. Overton who very kindly sent three examples. Two of these I 

 have examined for the clausium. 



In the clausia of these two species there is quite a marked difference 

 as I hope my outlines will show. The Dover examples have all the 

 characteristics of the continental dtibia. In this the " spoon " is much 

 more bent, narrower, stouter at the extreme end, the angle between 

 spoon and pedicle more abrupt, and the lower contour of the spoon 

 more deflected towards the pedicle. 



C, dubm Drap. (Dover). C. dubia Drap. (Switzerland). C. cravenensis Taylor. 



In cases of doubt we have in the clausium a very perfect little 

 register of specific values. If the clausium is different, it follows that 

 the internal armature is different also. It does not seem to matter 

 whether the example taken be a long or short one, the uniformity is 

 there. C. diibia Drap. is certainly a dif^cult species to determine 

 from the shell alone but the confusion is more likely to be with 

 bidentata (Strom) than with crave?iensis Taylor, 



I would ask my friends to examine carefully any particularly 

 large ^^ bidentata" from south-eastern localities before setting off for 

 Dover. 



CENSUS AUTHENTICATIONS FROM THE KELVINGROVE 

 MUSEUM, GLASGOW. 



By W. DENISON ROEBUCK, F.L.S., Hon. Recorder. 



All the records here given are based upon examples sent to the official 

 authenticators : myself for slugs only ; Mr. Fred Taylor for Paludestrhiids ; and 

 Mr. John W. Taylor for all other species. 



Through the kindness of Mr. Peter McNair, who is in charge of the Natural 

 History Collections of the Kelvingrove Museum at Glasgow, we have had the 

 opportunity of examining the land and freshwater mollusca contained therein, most 

 of them collected by the late Alfred Brown and the late David Robertson. 

 Ayrshire : From Troon there are numerous examples of Helicella itala, both 



adult and juvenile, in the Alfred Brown collection. 

 Cambridgeshire : A box full of shells collected by David Robertson and labelled 

 " River Camden, Ely, 10/69," evidently intended for the River Cam, near Ely, 

 contained specimens of Fts^'dhifu fonfhiak ; also a few examples each of F/anoriu 

 crista SinA Pisiditt??! siibtruncatum from "Canal off the River Camden [query 

 Cam] at Eley." 



