36 Qua/rterly Journal of Concliology. 



that eminent authority, J. Gwyn Jeffreys, Esq., LL.D., F.E..S. (through 

 Mr. G. Sherriff Tye, who was the first to notice the distinctness of the 

 shell), I send a description of it for the information of your readers 

 and conchologists in general, as also the remarks made upon this 

 vai-iety by the same authority, who has favoured me with his matured 

 opinion respecting them, and his researches in the matter have 

 brought him to the following conclusion : — 



He considers it to be the variety Schlechtii, of Zelebor, whose 

 description of it is published in the monograph of Adolph Schmidt, 

 entitled " Die Kritischen Grappen der Eiiropaeschen Clausilien," 

 1857, page 40. Claus. dubia (Draparnaud g.), var. Schlechtii, Zelebor. 

 Gracilis, cerasiova, nitidula, striatula, raro, strigillata, carina valida. 

 Long. 12, diam. 2^- — 2^ millim. Ap., 2\ millim. longa, If lata. 

 Fig. 94, 95, 198. 



Mr. Jeffreys further remarks : — " I believe this is the same variety 

 which Pareyss, of Vienna, has named eximia, but that name has not 

 been published;" adding, "The intermediate gradations between 

 Clausilia rugosa and its variety dubia are very numerous." The new 

 variety referred to is apparently confined to one or two spots in, the 

 counties of iNorthumberland and Durham, the best specimens being 

 found in the latter county, in a particular locality not far from the 

 coast. They are generally larger, more elongated, smoother, and more 

 transparent than CI. rugosa var dubia, the coloiir is likewise different ; 

 whereas the latter attains occasionally a fine purple colour, and i-uns 

 generally through the usual shades of brown to purplish brown, the 

 former appears only in a pale brown form, frequently resembling, in 

 external appearance, " Clausilia laminata," both in smoothness and 

 transparency. 



GosFORTH Grove, near Newcastle-upon-Tyne, 

 June I2th, 1874 



Zonites glaber (Studer) near Huddersfield.— In the early part of 

 May last I collected several very fine specimens of Zonites glaber about 

 2i or 3 miles from Huddersfield. It was not plentiful, its range being 

 limited to a very few yards. If the place is not disturbed, I have no 

 doubt that in the avitumn I shall be able to collect a good number of 

 it, as the place seems very suitable to the habits of the Zonites, as 

 there is plenty of cover for them — herbage and light soil in summer, 

 and stones in winter. — Listek Peace, Hebble Terrace, Bradford 

 Road, Huddersfield. — June 8th, 1874. 



On tlie occurrence of Clausilia rugosa var albida and Pupa um- 

 biiicata, var alba at Pateley Bridge.— On Whit-Monday, May 25th, 

 1874, in company with my friend, Mr. J. Whitwham, I paid a visit to 

 Pateley Bridge for the purpose of collecting shells, and was rewarded 

 with two specimens of Clausilia rugosa var albida. I also collected 

 sevei-al specimens of Fupa umbilicata var alba. Had our time not 

 been limited to almost a few minutes, I have no doubt that we should 

 have been able to collect several specimens of this rare variety of 

 Clausilia rugosa. We also collected Balia perversa for the first time. 

 Lister Peace, Hebble Terrace, Bradford Road, Huddersfield, 



